\u0627\u062e\u062a\u0628\u0627\u0631 \u062a\u0641\u0627\u0639\u0644\u064a: \u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646\u064a \u0648\u0627\u0644\u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u0645\u0624\u062b\u0631\u0629<\/title>\n <script src=\"https:\/\/cdn.tailwindcss.com\"><\/script>\n <link href=\"https:\/\/fonts.googleapis.com\/css2?family=Cairo:wght@300;400;500;600;700;800&display=swap\" rel=\"stylesheet\">\n <style>\n body {\n background: linear-gradient(135deg, #1e1a3a, #2d2a5e);\n font-family: 'Cairo', sans-serif;\n min-height: 100vh;\n padding: 1.5rem;\n }\n .glass-card {\n background: rgba(15, 23, 42, 0.65);\n backdrop-filter: blur(14px);\n border: 1px solid rgba(255,255,255,0.15);\n border-radius: 1.75rem;\n box-shadow: 0 20px 35px -12px rgba(0,0,0,0.4);\n }\n .option-btn {\n transition: all 0.2s ease;\n background: rgba(255,255,255,0.05);\n border: 1.5px solid transparent;\n border-radius: 1rem;\n padding: 0.9rem 1.2rem;\n margin-bottom: 0.7rem;\n cursor: pointer;\n display: flex;\n align-items: center;\n gap: 0.75rem;\n }\n .option-btn:hover:not(.disabled-opt) {\n background: rgba(139, 92, 246, 0.2);\n border-color: #a78bfa;\n }\n .option-radio {\n width: 1.2rem;\n height: 1.2rem;\n accent-color: #8b5cf6;\n margin-left: 0.5rem;\n cursor: pointer;\n }\n .option-text {\n flex: 1;\n font-weight: 500;\n }\n .correct-highlight {\n background: rgba(34, 197, 94, 0.25);\n border-color: #4ade80;\n }\n .incorrect-highlight {\n background: rgba(239, 68, 68, 0.25);\n border-color: #f87171;\n }\n .explanation-box {\n background: rgba(0, 0, 0, 0.35);\n border-right: 4px solid #818cf8;\n padding: 1rem;\n border-radius: 1rem;\n margin-top: 1.2rem;\n font-size: 1rem;\n line-height: 1.6;\n }\n .nav-btn {\n background: #2d2b55;\n transition: 0.2s;\n font-weight: 600;\n padding: 0.5rem 1rem;\n border-radius: 2rem;\n }\n .nav-btn:hover:not(:disabled) {\n background: #5b21b6;\n transform: scale(0.97);\n }\n .nav-btn:disabled {\n opacity: 0.4;\n cursor: not-allowed;\n }\n .progress-step {\n background: #2d2a5e;\n border-radius: 2rem;\n height: 8px;\n transition: width 0.2s ease;\n }\n .badge-difficulty {\n font-size: 0.7rem;\n background: rgba(0,0,0,0.4);\n padding: 0.2rem 0.7rem;\n border-radius: 2rem;\n }\n .result-panel {\n background: linear-gradient(95deg, #1e1b4b, #2e2a6e);\n border-radius: 1.5rem;\n padding: 1rem 1.5rem;\n margin-top: 1.5rem;\n text-align: center;\n }\n button:active {\n transform: scale(0.98);\n }\n @media (max-width: 640px) {\n body { padding: 1rem; }\n .option-btn { padding: 0.7rem 0.9rem; }\n .explanation-box { font-size: 0.95rem; }\n }\n .wide-container {\n max-width: 90rem;\n margin-left: auto;\n margin-right: auto;\n width: 100%;\n }\n <\/style>\n<\/head>\n<body>\n <div class=\"wide-container\">\n <div class=\"glass-card p-5 md:p-6 mb-6 text-center\">\n <h1 class=\"text-2xl md:text-3xl font-extrabold text-white tracking-tight\">🧪 \u0627\u062e\u062a\u0628\u0627\u0631: \u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646\u064a \u0648\u0627\u0644\u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u0645\u0624\u062b\u0631\u0629<\/h1>\n <p class=\"text-indigo-200 text-md mt-1\">\u0627\u0644\u062b\u0627\u0646\u0648\u064a – \u0627\u0644\u0635\u0641 \u0627\u0644\u062b\u0627\u0646\u064a \u0639\u0634\u0631 – \u0627\u0644\u0645\u0633\u0627\u0631 \u0627\u0644\u0623\u0643\u0627\u062f\u064a\u0645\u064a | \u0627\u0644\u062f\u0631\u0633 \u0627\u0644\u062b\u0627\u0646\u064a<\/p>\n <\/div>\n\n <div class=\"glass-card p-5 md:p-7\">\n <div class=\"flex flex-wrap justify-between items-center gap-3 mb-5 pb-2 border-b border-white\/20\">\n <div class=\"flex items-center gap-3\">\n <span class=\"bg-purple-700\/60 text-white text-l font-bold px-3 py-1 rounded-full\">📋 \u0627\u0644\u0633\u0624\u0627\u0644 <span id=\"current-q-num\">1<\/span> \/ <span id=\"total-q-count\">0<\/span><\/span>\n <span id=\"difficulty-badge\" class=\"badge-difficulty text-white\/80\"><\/span>\n <\/div>\n <div class=\"flex items-center gap-2 text-l bg-black\/20 px-3 py-1 rounded-full\">\n <span class=\"text-indigo-300\">\u2713 \u0627\u0644\u0645\u062c\u0627\u0628 \u0639\u0646\u0647:<\/span>\n <span id=\"answered-count\" class=\"font-bold text-white\">0<\/span>\n <span class=\"text-indigo-300\">\u0645\u0646<\/span>\n <span id=\"total-answered-base\" class=\"font-bold text-white\">0<\/span>\n <\/div>\n <\/div>\n \n <div class=\"mb-5\">\n <div class=\"flex justify-between text-xs text-indigo-200 mb-1\">\n <span>\u0627\u0644\u062a\u0642\u062f\u0645 \u0641\u064a \u0627\u0644\u0623\u0633\u0626\u0644\u0629<\/span>\n <span id=\"progress-percent\">0%<\/span>\n <\/div>\n <div class=\"w-full bg-gray-800\/60 rounded-full h-2.5\">\n <div id=\"progress-bar\" class=\"progress-step bg-gradient-to-r from-purple-500 to-indigo-500 h-2.5 rounded-full\" style=\"width: 0%\"><\/div>\n <\/div>\n <\/div>\n\n <div id=\"dynamic-question-area\"><\/div>\n\n <div class=\"flex flex-wrap justify-center gap-3 mt-8 pt-3 border-t border-white\/20\">\n <button id=\"first-btn\" class=\"nav-btn text-white px-4 py-2 text-l md:text-base\">⏮️ \u0627\u0644\u0623\u0648\u0644<\/button>\n <button id=\"prev-btn\" class=\"nav-btn text-white px-5 py-2\">▶️ \u0627\u0644\u0633\u0627\u0628\u0642<\/button>\n <button id=\"next-btn\" class=\"nav-btn text-white px-5 py-2\">\u0627\u0644\u062a\u0627\u0644\u064a ◀️<\/button>\n <button id=\"last-btn\" class=\"nav-btn text-white px-4 py-2 text-l md:text-base\">\u0627\u0644\u0623\u062e\u064a\u0631 ⏭️<\/button>\n <\/div>\n\n <div class=\"mt-6 text-center\">\n <button id=\"submit-final-btn\" class=\"bg-gradient-to-r from-purple-600 to-indigo-600 hover:from-purple-700 hover:to-indigo-700 text-white font-bold py-3 px-8 rounded-full shadow-lg transition text-lg\">✨ \u0625\u0638\u0647\u0627\u0631 \u0627\u0644\u0646\u062a\u064a\u062c\u0629 ✨<\/button>\n <\/div>\n\n <div id=\"result-panel\" class=\"result-panel hidden\">\n <h2 class=\"text-2xl font-bold text-white mb-2\">📊 \u0646\u062a\u064a\u062c\u062a\u0643 \u0627\u0644\u0646\u0647\u0627\u0626\u064a\u0629<\/h2>\n <p id=\"final-score-text\" class=\"text-4xl font-extrabold text-purple-300 mb-2\">0 \/ 0<\/p>\n <p id=\"result-message\" class=\"text-indigo-200 text-l\"><\/p>\n <button id=\"reset-exam-btn\" class=\"mt-4 bg-white\/20 hover:bg-white\/30 text-white px-6 py-2 rounded-full font-semibold transition\">🔄 \u0625\u0639\u0627\u062f\u0629 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631<\/button>\n <\/div>\n <\/div>\n <\/div>\n\n <script>\n const quizData = [{\"question\":\"\u0645\u0627\u0630\u0627 \u062a\u0639\u0646\u064a \u0638\u0627\u0647\u0631\u0629 \u0627\u0644\u062a\u0623\u064a\u0646 \u0627\u0644\u0630\u0627\u062a\u064a \u0644\u0644\u0645\u0627\u0621\u061f\",\"options\":[\"\u062a\u0641\u0627\u0639\u0644 \u0627\u0644\u0645\u0627\u0621 \u0645\u0639 \u062d\u0645\u0636 \u0642\u0648\u064a\",\"\u062a\u0641\u0627\u0639\u0644 \u0627\u0644\u0645\u0627\u0621 \u0645\u0639 \u0642\u0627\u0639\u062f\u0629 \u0642\u0648\u064a\u0629\",\"\u062a\u0641\u0627\u0639\u0644 \u062c\u0632\u064a\u0626\u064a\u0646 \u0645\u0646 \u0627\u0644\u0645\u0627\u0621 \u062d\u064a\u062b \u064a\u0633\u0644\u0643 \u0623\u062d\u062f\u0647\u0645\u0627 \u0633\u0644\u0648\u0643 \u0627\u0644\u062d\u0645\u0636 \u0648\u0627\u0644\u0622\u062e\u0631 \u0633\u0644\u0648\u0643 \u0627\u0644\u0642\u0627\u0639\u062f\u0629\",\"\u062a\u0641\u0643\u0643 \u0627\u0644\u0645\u0627\u0621 \u0625\u0644\u0649 \u0639\u0646\u0627\u0635\u0631\u0647 \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629\"],\"correctAnswer\":\"\u062a\u0641\u0627\u0639\u0644 \u062c\u0632\u064a\u0626\u064a\u0646 \u0645\u0646 \u0627\u0644\u0645\u0627\u0621 \u062d\u064a\u062b \u064a\u0633\u0644\u0643 \u0623\u062d\u062f\u0647\u0645\u0627 \u0633\u0644\u0648\u0643 \u0627\u0644\u062d\u0645\u0636 \u0648\u0627\u0644\u0622\u062e\u0631 \u0633\u0644\u0648\u0643 \u0627\u0644\u0642\u0627\u0639\u062f\u0629\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0627\u0644\u062a\u0623\u064a\u0646 \u0627\u0644\u0630\u0627\u062a\u064a \u0644\u0644\u0645\u0627\u0621 \u0647\u0648 \u062a\u0641\u0627\u0639\u0644 \u064a\u062d\u062f\u062b \u0628\u064a\u0646 \u062c\u0632\u064a\u0626\u064a \u0645\u0627\u0621\u060c \u062d\u064a\u062b \u064a\u0639\u0645\u0644 \u0623\u062d\u062f\u0647\u0645\u0627 \u0643\u062d\u0645\u0636 \u0645\u0627\u0646\u062d \u0644\u0644\u0628\u0631\u0648\u062a\u0648\u0646 \u0648\u0627\u0644\u0622\u062e\u0631 \u0643\u0642\u0627\u0639\u062f\u0629 \u0645\u0633\u062a\u0642\u0628\u0644\u0629 \u0644\u0644\u0628\u0631\u0648\u062a\u0648\u0646.\"},{\"question\":\"\u0627\u0643\u062a\u0628 \u0627\u0644\u0645\u0639\u0627\u062f\u0644\u0629 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629 \u0627\u0644\u062a\u064a \u062a\u0645\u062b\u0644 \u0627\u0644\u062a\u0623\u064a\u0646 \u0627\u0644\u0630\u0627\u062a\u064a \u0644\u0644\u0645\u0627\u0621.\",\"options\":[\"H\u2082O(l) \u2192 H\u207a(aq) + OH\u207b(aq)\",\"2H\u2082O(l) \u2192 H\u2082O\u207a(aq) + OH\u207b(aq)\",\"2H\u2082O(l) \u21cc H\u2083O\u207a(aq) + OH\u207b(aq)\",\"H\u2082O(l) + H\u2082O(l) \u2192 2H\u2082O(aq)\"],\"correctAnswer\":\"2H\u2082O(l) \u21cc H\u2083O\u207a(aq) + OH\u207b(aq)\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0627\u0644\u0645\u0639\u0627\u062f\u0644\u0629 \u0627\u0644\u0635\u062d\u064a\u062d\u0629 \u0644\u0644\u062a\u0623\u064a\u0646 \u0627\u0644\u0630\u0627\u062a\u064a \u0644\u0644\u0645\u0627\u0621 \u0647\u064a 2H\u2082O(l) \u21cc H\u2083O\u207a(aq) + OH\u207b(aq)\u060c \u062d\u064a\u062b \u062a\u0646\u062a\u062c \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0646\u064a\u0648\u0645 \u0648\u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f.\"},{\"question\":\"\u0639\u0646\u062f \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 25\u00b0C\u060c \u0645\u0627 \u0647\u0648 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0646\u064a\u0648\u0645 [H\u2083O\u207a] \u0648\u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f [OH\u207b] \u0641\u064a \u0627\u0644\u0645\u0627\u0621 \u0627\u0644\u0646\u0642\u064a\u061f\",\"options\":[\"[H\u2083O\u207a] = [OH\u207b] = 1 \u00d7 10\u207b\u00b9\u2074 M\",\"[H\u2083O\u207a] = [OH\u207b] = 1 \u00d7 10\u207b\u2077 M\",\"[H\u2083O\u207a] = 1 M, [OH\u207b] = 1 \u00d7 10\u207b\u00b9\u2074 M\",\"[H\u2083O\u207a] = 1 \u00d7 10\u207b\u00b9\u2074 M, [OH\u207b] = 1 M\"],\"correctAnswer\":\"[H\u2083O\u207a] = [OH\u207b] = 1 \u00d7 10\u207b\u2077 M\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0641\u064a \u0627\u0644\u0645\u0627\u0621 \u0627\u0644\u0646\u0642\u064a \u0639\u0646\u062f 25\u00b0C\u060c \u062a\u0643\u0648\u0646 \u062a\u0631\u0627\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0646\u064a\u0648\u0645 \u0648\u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f \u0645\u062a\u0633\u0627\u0648\u064a\u0629 \u0648\u0642\u064a\u0645\u062a\u0647\u0627 1 \u00d7 10\u207b\u2077 \u0645\u0648\u0644\u0627\u0631.\"},{\"question\":\"\u0645\u0627 \u0647\u0648 \u062b\u0627\u0628\u062a \u062a\u0623\u064a\u0651\u064f\u0646 \u0627\u0644\u0645\u0627\u0621 (Kw) \u0639\u0646\u062f \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 25\u00b0C\u061f\",\"options\":[\"1.0 \u00d7 10\u207b\u2077\",\"1.0 \u00d7 10\u207b\u00b9\u2070\",\"1.0 \u00d7 10\u207b\u00b9\u2074\",\"1.0 \u00d7 10\u2070\"],\"correctAnswer\":\"1.0 \u00d7 10\u207b\u00b9\u2074\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u062b\u0627\u0628\u062a \u062a\u0623\u064a\u0651\u064f\u0646 \u0627\u0644\u0645\u0627\u0621 (Kw) \u0647\u0648 \u062d\u0627\u0635\u0644 \u0636\u0631\u0628 \u062a\u0631\u0643\u064a\u0632\u064a \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0646\u064a\u0648\u0645 \u0648\u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f\u060c \u0648\u0642\u064a\u0645\u062a\u0647 1.0 \u00d7 10\u207b\u00b9\u2074 \u0639\u0646\u062f 25\u00b0C.\"},{\"question\":\"\u0625\u0630\u0627 \u0643\u0627\u0646 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0646\u064a\u0648\u0645 [H\u2083O\u207a] \u0641\u064a \u0645\u062d\u0644\u0648\u0644 \u0645\u0627 \u064a\u0633\u0627\u0648\u064a 1 \u00d7 10\u207b\u2075 M \u0639\u0646\u062f 25\u00b0C\u060c \u0641\u0645\u0627 \u0647\u0648 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f [OH\u207b]\u061f\",\"options\":[\"1 \u00d7 10\u207b\u2075 M\",\"1 \u00d7 10\u207b\u2079 M\",\"1 \u00d7 10\u207b\u00b9\u2074 M\",\"1 \u00d7 10\u207b\u2077 M\"],\"correctAnswer\":\"1 \u00d7 10\u207b\u2079 M\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0639\u0644\u0627\u0642\u0629 Kw = [H\u2083O\u207a][OH\u207b]\u060c \u064a\u0645\u0643\u0646 \u062d\u0633\u0627\u0628 [OH\u207b] = Kw \/ [H\u2083O\u207a] = (1 \u00d7 10\u207b\u00b9\u2074) \/ (1 \u00d7 10\u207b\u2075) = 1 \u00d7 10\u207b\u2079 M.\"},{\"question\":\"\u0625\u0630\u0627 \u0643\u0627\u0646 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f [OH\u207b] \u0641\u064a \u0645\u062d\u0644\u0648\u0644 \u0645\u0627 \u064a\u0633\u0627\u0648\u064a 1 \u00d7 10\u207b\u00b2 M \u0639\u0646\u062f 25\u00b0C\u060c \u0641\u0645\u0627 \u0647\u0648 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0646\u064a\u0648\u0645 [H\u2083O\u207a]\u061f\",\"options\":[\"1 \u00d7 10\u207b\u00b2 M\",\"1 \u00d7 10\u207b\u00b9\u00b2 M\",\"1 \u00d7 10\u207b\u2077 M\",\"1 \u00d7 10\u207b\u00b9\u2074 M\"],\"correctAnswer\":\"1 \u00d7 10\u207b\u00b9\u00b2 M\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0639\u0644\u0627\u0642\u0629 Kw = [H\u2083O\u207a][OH\u207b]\u060c \u064a\u0645\u0643\u0646 \u062d\u0633\u0627\u0628 [H\u2083O\u207a] = Kw \/ [OH\u207b] = (1 \u00d7 10\u207b\u00b9\u2074) \/ (1 \u00d7 10\u207b\u00b2) = 1 \u00d7 10\u207b\u00b9\u00b2 M.\"},{\"question\":\"\u0623\u064a \u0645\u0646 \u0627\u0644\u0639\u0644\u0627\u0642\u0627\u062a \u0627\u0644\u062a\u0627\u0644\u064a\u0629 \u062a\u0635\u0641 \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u062d\u0645\u0636\u064a \u0639\u0646\u062f 25\u00b0C\u061f\",\"options\":[\"[H\u2083O\u207a] = [OH\u207b]\",\"[H\u2083O\u207a] < [OH\u207b]\",\"[H\u2083O\u207a] > [OH\u207b]\",\"[H\u2083O\u207a] \u00d7 [OH\u207b] = 1 \u00d7 10\u207b\u00b9\u2074\"],\"correctAnswer\":\"[H\u2083O\u207a] > [OH\u207b]\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u062d\u0645\u0636\u064a \u064a\u062a\u0645\u064a\u0632 \u0628\u0623\u0646 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0646\u064a\u0648\u0645 \u0641\u064a\u0647 \u064a\u0643\u0648\u0646 \u0623\u0643\u0628\u0631 \u0645\u0646 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f.\"},{\"question\":\"\u0645\u0627 \u0627\u0644\u0630\u064a \u064a\u0645\u064a\u0632 \u0627\u0644\u062d\u0645\u0648\u0636 \u0648\u0627\u0644\u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0642\u0648\u064a\u0629\u061f\",\"options\":[\"\u062a\u062a\u0623\u064a\u0646 \u0628\u0634\u0643\u0644 \u062c\u0632\u0626\u064a \u0641\u064a \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0645\u0627\u0626\u064a\",\"\u0644\u0627 \u062a\u062a\u0641\u0627\u0639\u0644 \u0645\u0639 \u0627\u0644\u0645\u0627\u0621\",\"\u062a\u062a\u0623\u064a\u0646 \u0628\u0634\u0643\u0644 \u0643\u0627\u0645\u0644 (100%) \u0641\u064a \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0645\u0627\u0626\u064a\",\"\u062a\u0643\u0648\u0646 \u062a\u0631\u0627\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a\u0647\u0627 \u0645\u062a\u0633\u0627\u0648\u064a\u0629 \u062f\u0627\u0626\u0645\u0627\u064b\"],\"correctAnswer\":\"\u062a\u062a\u0623\u064a\u0646 \u0628\u0634\u0643\u0644 \u0643\u0627\u0645\u0644 (100%) \u0641\u064a \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0645\u0627\u0626\u064a\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0627\u0644\u062d\u0645\u0648\u0636 \u0648\u0627\u0644\u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0642\u0648\u064a\u0629 \u0647\u064a \u0627\u0644\u062a\u064a \u062a\u062a\u0641\u0643\u0643 \u0623\u0648 \u062a\u062a\u0623\u064a\u0646 \u0643\u0644\u064a\u0627\u064b \u0641\u064a \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0645\u0627\u0626\u064a.\"},{\"question\":\"\u0623\u064a \u0645\u0646 \u0627\u0644\u0645\u0648\u0627\u062f \u0627\u0644\u062a\u0627\u0644\u064a\u0629 \u062a\u064f\u0639\u062a\u0628\u0631 \u062d\u0645\u0636\u0627\u064b \u0642\u0648\u064a\u0627\u064b\u061f\",\"options\":[\"CH\u2083COOH (\u062d\u0645\u0636 \u0627\u0644\u062e\u0644\u064a\u0643)\",\"H\u2082CO\u2083 (\u062d\u0645\u0636 \u0627\u0644\u0643\u0631\u0628\u0648\u0646\u064a\u0643)\",\"HNO\u2083 (\u062d\u0645\u0636 \u0627\u0644\u0646\u064a\u062a\u0631\u064a\u0643)\",\"H\u2083PO\u2084 (\u062d\u0645\u0636 \u0627\u0644\u0641\u0648\u0633\u0641\u0648\u0631\u064a\u0643)\"],\"correctAnswer\":\"HNO\u2083 (\u062d\u0645\u0636 \u0627\u0644\u0646\u064a\u062a\u0631\u064a\u0643)\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u062d\u0645\u0636 \u0627\u0644\u0646\u064a\u062a\u0631\u064a\u0643 (HNO\u2083) \u0647\u0648 \u0623\u062d\u062f \u0627\u0644\u0623\u0645\u062b\u0644\u0629 \u0639\u0644\u0649 \u0627\u0644\u062d\u0645\u0648\u0636 \u0627\u0644\u0642\u0648\u064a\u0629 \u0627\u0644\u062a\u064a \u062a\u062a\u0623\u064a\u0646 \u0643\u0644\u064a\u0627\u064b \u0641\u064a \u0627\u0644\u0645\u0627\u0621.\"},{\"question\":\"\u0623\u064a \u0645\u0646 \u0627\u0644\u0645\u0648\u0627\u062f \u0627\u0644\u062a\u0627\u0644\u064a\u0629 \u062a\u064f\u0639\u062a\u0628\u0631 \u0642\u0627\u0639\u062f\u0629 \u0642\u0648\u064a\u0629\u061f\",\"options\":[\"NH\u2083 (\u0627\u0644\u0623\u0645\u0648\u0646\u064a\u0627)\",\"Mg(OH)\u2082 (\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f \u0627\u0644\u0645\u063a\u0646\u064a\u0633\u064a\u0648\u0645)\",\"NaOH (\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f \u0627\u0644\u0635\u0648\u062f\u064a\u0648\u0645)\",\"CaCO\u2083 (\u0643\u0631\u0628\u0648\u0646\u0627\u062a \u0627\u0644\u0643\u0627\u0644\u0633\u064a\u0648\u0645)\"],\"correctAnswer\":\"NaOH (\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f \u0627\u0644\u0635\u0648\u062f\u064a\u0648\u0645)\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f \u0627\u0644\u0635\u0648\u062f\u064a\u0648\u0645 (NaOH) \u0647\u0648 \u0623\u062d\u062f \u0627\u0644\u0623\u0645\u062b\u0644\u0629 \u0639\u0644\u0649 \u0627\u0644\u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0642\u0648\u064a\u0629 \u0627\u0644\u062a\u064a \u062a\u062a\u0641\u0643\u0643 \u0643\u0644\u064a\u0627\u064b \u0641\u064a \u0627\u0644\u0645\u0627\u0621.\"},{\"question\":\"\u0645\u0627 \u0647\u0648 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a H\u2083O\u207a \u0641\u064a \u0645\u062d\u0644\u0648\u0644 \u062d\u0645\u0636 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0643\u0644\u0648\u0631\u064a\u0643 (HCl) \u062a\u0631\u0643\u064a\u0632\u0647 0.01 M\u061f\",\"options\":[\"0.01 M\",\"1.0 M\",\"1 \u00d7 10\u207b\u00b9\u2074 M\",\"1 \u00d7 10\u207b\u2077 M\"],\"correctAnswer\":\"0.01 M\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0628\u0645\u0627 \u0623\u0646 HCl \u062d\u0645\u0636 \u0642\u0648\u064a\u060c \u0641\u0625\u0646\u0647 \u064a\u062a\u0623\u064a\u0646 \u0643\u0644\u064a\u0627\u064b\u060c \u0648\u0628\u0627\u0644\u062a\u0627\u0644\u064a [H\u2083O\u207a] = [HCl] = 0.01 M.\"},{\"question\":\"\u0627\u062d\u0633\u0628 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a OH\u207b \u0641\u064a \u0645\u062d\u0644\u0648\u0644 \u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f \u0627\u0644\u0628\u0648\u062a\u0627\u0633\u064a\u0648\u0645 (KOH) \u062a\u0631\u0643\u064a\u0632\u0647 0.005 M.\",\"options\":[\"0.005 M\",\"0.01 M\",\"1 \u00d7 10\u207b\u00b9\u2074 M\",\"1 \u00d7 10\u207b\u2077 M\"],\"correctAnswer\":\"0.005 M\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0628\u0645\u0627 \u0623\u0646 KOH \u0642\u0627\u0639\u062f\u0629 \u0642\u0648\u064a\u0629\u060c \u0641\u0625\u0646\u0647\u0627 \u062a\u062a\u0641\u0643\u0643 \u0643\u0644\u064a\u0627\u064b \u0648\u062a\u0646\u062a\u062c \u0623\u064a\u0648\u0646 OH\u207b \u0648\u0627\u062d\u062f \u0644\u0643\u0644 \u0648\u062d\u062f\u0629\u060c \u0648\u0628\u0627\u0644\u062a\u0627\u0644\u064a [OH\u207b] = [KOH] = 0.005 M.\"},{\"question\":\"\u0627\u062d\u0633\u0628 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a OH\u207b \u0641\u064a \u0645\u062d\u0644\u0648\u0644 \u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f \u0627\u0644\u0643\u0627\u0644\u0633\u064a\u0648\u0645 (Ca(OH)\u2082) \u062a\u0631\u0643\u064a\u0632\u0647 0.02 M.\",\"options\":[\"0.02 M\",\"0.04 M\",\"0.01 M\",\"1 \u00d7 10\u207b\u00b9\u2074 M\"],\"correctAnswer\":\"0.04 M\",\"difficulty\":\"\u0635\u0639\u0628\",\"explanation\":\"\u0628\u0645\u0627 \u0623\u0646 Ca(OH)\u2082 \u0642\u0627\u0639\u062f\u0629 \u0642\u0648\u064a\u0629 \u0648\u062a\u0646\u062a\u062c \u0623\u064a\u0648\u0646\u064a\u0646 OH\u207b \u0644\u0643\u0644 \u0648\u062d\u062f\u0629\u060c \u0641\u0625\u0646 [OH\u207b] = [Ca(OH)\u2082] \u00d7 2 = 0.02 M \u00d7 2 = 0.04 M.\"},{\"question\":\"\u0645\u0627 \u0647\u064a \u0627\u0644\u0639\u0644\u0627\u0642\u0629 \u0627\u0644\u0631\u064a\u0627\u0636\u064a\u0629 \u0627\u0644\u062a\u064a \u062a\u0631\u0628\u0637 \u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646\u064a (pH) \u0628\u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0646\u064a\u0648\u0645 [H\u2083O\u207a]\u061f\",\"options\":[\"pH = log[H\u2083O\u207a]\",\"pH = -log[H\u2083O\u207a]\",\"[H\u2083O\u207a] = 10\u207bpH\",\"pH = 14 - pOH\"],\"correctAnswer\":\"pH = -log[H\u2083O\u207a]\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646\u064a (pH) \u064a\u064f\u0639\u0631\u0641 \u0639\u0644\u0649 \u0623\u0646\u0647 \u0627\u0644\u0644\u0648\u063a\u0627\u0631\u064a\u062a\u0645 \u0627\u0644\u0633\u0627\u0644\u0628 \u0644\u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0646\u064a\u0648\u0645.\"},{\"question\":\"\u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u0642\u064a\u0645\u0629 pH \u0644\u0645\u062d\u0644\u0648\u0644 \u062a\u0633\u0627\u0648\u064a 2\u060c \u0641\u0645\u0627 \u0647\u0648 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0646\u064a\u0648\u0645 [H\u2083O\u207a]\u061f\",\"options\":[\"1 \u00d7 10\u207b\u00b2 M\",\"1 \u00d7 10\u00b2 M\",\"1 \u00d7 10\u207b\u00b9\u00b2 M\",\"1 \u00d7 10\u2077 M\"],\"correctAnswer\":\"1 \u00d7 10\u207b\u00b2 M\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0644\u062d\u0633\u0627\u0628 [H\u2083O\u207a] \u0645\u0646 pH\u060c \u0646\u0633\u062a\u062e\u062f\u0645 \u0627\u0644\u0639\u0644\u0627\u0642\u0629 [H\u2083O\u207a] = 10\u207bpH. \u0625\u0630\u0646\u060c [H\u2083O\u207a] = 10\u207b\u00b2 M.\"},{\"question\":\"\u0645\u0627 \u0647\u064a \u0627\u0644\u0639\u0644\u0627\u0642\u0629 \u0628\u064a\u0646 \u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646\u064a (pH) \u0648\u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f\u064a (pOH) \u0639\u0646\u062f 25\u00b0C\u061f\",\"options\":[\"pH + pOH = 7\",\"pH - pOH = 14\",\"pH \u00d7 pOH = 14\",\"pH + pOH = 14\"],\"correctAnswer\":\"pH + pOH = 14\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0645\u062c\u0645\u0648\u0639 \u0642\u064a\u0645\u062a\u064a pH \u0648 pOH \u064a\u0633\u0627\u0648\u064a \u062f\u0627\u0626\u0645\u0627\u064b 14 \u0639\u0646\u062f \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 25\u00b0C.\"},{\"question\":\"\u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u0642\u064a\u0645\u0629 pOH \u0644\u0645\u062d\u0644\u0648\u0644 \u0647\u064a 3\u060c \u0641\u0645\u0627 \u0647\u064a \u0642\u064a\u0645\u0629 pH \u0644\u0644\u0645\u062d\u0644\u0648\u0644\u061f\",\"options\":[\"3\",\"11\",\"7\",\"14\"],\"correctAnswer\":\"11\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0639\u0644\u0627\u0642\u0629 pH + pOH = 14\u060c \u0641\u0625\u0646 pH = 14 - pOH = 14 - 3 = 11.\"},{\"question\":\"\u0645\u062d\u0644\u0648\u0644 \u0644\u0647 pH = 9. \u0645\u0627 \u0647\u0648 \u062a\u0635\u0646\u064a\u0641 \u0647\u0630\u0627 \u0627\u0644\u0645\u062d\u0644\u0648\u0644\u061f\",\"options\":[\"\u062d\u0645\u0636\u064a\",\"\u0645\u062a\u0639\u0627\u062f\u0644\",\"\u0642\u0627\u0639\u062f\u064a\",\"\u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u0643\u0648\u0646 \u062d\u0645\u0636\u064a\u0627\u064b \u0623\u0648 \u0642\u0627\u0639\u062f\u064a\u0627\u064b\"],\"correctAnswer\":\"\u0642\u0627\u0639\u062f\u064a\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0630\u064a \u062a\u0643\u0648\u0646 \u0642\u064a\u0645\u0629 pH \u0644\u0647 \u0623\u0643\u0628\u0631 \u0645\u0646 7 \u064a\u064f\u0635\u0646\u0641 \u0639\u0644\u0649 \u0623\u0646\u0647 \u0642\u0627\u0639\u062f\u064a.\"},{\"question\":\"\u0643\u0644\u0645\u0627 \u0642\u0644\u062a \u0642\u064a\u0645\u0629 \u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646\u064a (pH) \u0644\u0644\u0645\u062d\u0644\u0648\u0644\u060c \u0645\u0627\u0630\u0627 \u064a\u062d\u062f\u062b \u0644\u062d\u0645\u0648\u0636\u062a\u0647\u061f\",\"options\":[\"\u062a\u0632\u062f\u0627\u062f \u062d\u0645\u0648\u0636\u062a\u0647\",\"\u062a\u0642\u0644 \u062d\u0645\u0648\u0636\u062a\u0647\",\"\u062a\u0628\u0642\u0649 \u062d\u0645\u0648\u0636\u062a\u0647 \u062b\u0627\u0628\u062a\u0629\",\"\u064a\u0635\u0628\u062d \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0645\u062a\u0639\u0627\u062f\u0644\u0627\u064b\"],\"correctAnswer\":\"\u062a\u0632\u062f\u0627\u062f \u062d\u0645\u0648\u0636\u062a\u0647\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0645\u0642\u064a\u0627\u0633 pH \u0645\u0642\u064a\u0627\u0633 \u0644\u0648\u063a\u0627\u0631\u064a\u062a\u0645\u064a \u0639\u0643\u0633\u064a \u0644\u0644\u062d\u0645\u0648\u0636\u0629\u061b \u0643\u0644\u0645\u0627 \u0627\u0646\u062e\u0641\u0636\u062a \u0642\u064a\u0645\u0629 pH\u060c \u0632\u0627\u062f\u062a \u062d\u0645\u0648\u0636\u0629 \u0627\u0644\u0645\u062d\u0644\u0648\u0644.\"},{\"question\":\"\u0627\u062d\u0633\u0628 \u0642\u064a\u0645\u0629 pH \u0644\u0645\u062d\u0644\u0648\u0644 \u0645\u0646 \u062d\u0645\u0636 \u0627\u0644\u0646\u064a\u062a\u0631\u064a\u0643 (HNO\u2083) \u062a\u0631\u0643\u064a\u0632\u0647 1 \u00d7 10\u207b\u00b3 M.\",\"options\":[\"3\",\"11\",\"7\",\"1\"],\"correctAnswer\":\"3\",\"difficulty\":\"\u0635\u0639\u0628\",\"explanation\":\"\u0628\u0645\u0627 \u0623\u0646 HNO\u2083 \u062d\u0645\u0636 \u0642\u0648\u064a\u060c \u0641\u0625\u0646 [H\u2083O\u207a] = [HNO\u2083] = 1 \u00d7 10\u207b\u00b3 M. \u0625\u0630\u0646\u060c pH = -log(1 \u00d7 10\u207b\u00b3) = 3.\"},{\"question\":\"\u0627\u062d\u0633\u0628 \u0642\u064a\u0645\u0629 pH \u0644\u0645\u062d\u0644\u0648\u0644 \u0645\u0646 \u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f \u0627\u0644\u0635\u0648\u062f\u064a\u0648\u0645 (NaOH) \u062a\u0631\u0643\u064a\u0632\u0647 1 \u00d7 10\u207b\u00b2 M.\",\"options\":[\"2\",\"12\",\"7\",\"1\"],\"correctAnswer\":\"12\",\"difficulty\":\"\u0635\u0639\u0628\",\"explanation\":\"\u0628\u0645\u0627 \u0623\u0646 NaOH \u0642\u0627\u0639\u062f\u0629 \u0642\u0648\u064a\u0629\u060c \u0641\u0625\u0646 [OH\u207b] = [NaOH] = 1 \u00d7 10\u207b\u00b2 M. \u0625\u0630\u0646\u060c pOH = -log(1 \u00d7 10\u207b\u00b2) = 2. \u0648\u0645\u0646\u0647\u0627\u060c pH = 14 - pOH = 14 - 2 = 12.\"},{\"question\":\"\u0645\u0627 \u0647\u0648 \u0627\u0644\u0627\u0633\u0645 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a \u0644\u0640 HClO\u2084 \u0648\u0647\u0648 \u0645\u0646 \u0627\u0644\u062d\u0645\u0648\u0636 \u0627\u0644\u0642\u0648\u064a\u0629\u061f\",\"options\":[\"\u062d\u0645\u0636 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0643\u0644\u0648\u0631\u064a\u0643\",\"\u062d\u0645\u0636 \u0627\u0644\u0643\u0628\u0631\u064a\u062a\u064a\u0643\",\"\u062d\u0645\u0636 \u0627\u0644\u0628\u064a\u0631\u0643\u0644\u0648\u0631\u064a\u0643\",\"\u062d\u0645\u0636 \u0627\u0644\u0646\u064a\u062a\u0631\u064a\u0643\"],\"correctAnswer\":\"\u062d\u0645\u0636 \u0627\u0644\u0628\u064a\u0631\u0643\u0644\u0648\u0631\u064a\u0643\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"HClO\u2084 \u0647\u0648 \u062d\u0645\u0636 \u0627\u0644\u0628\u064a\u0631\u0643\u0644\u0648\u0631\u064a\u0643\u060c \u0648\u0647\u0648 \u0645\u0646 \u0627\u0644\u062d\u0645\u0648\u0636 \u0627\u0644\u0642\u0648\u064a\u0629 \u0627\u0644\u062a\u064a \u064a\u062c\u0628 \u062d\u0641\u0638\u0647\u0627.\"},{\"question\":\"\u0623\u064a \u0645\u0646 \u0627\u0644\u0639\u0628\u0627\u0631\u0627\u062a \u0627\u0644\u062a\u0627\u0644\u064a\u0629 \u062a\u0635\u0641 \u0639\u0645\u0644\u064a\u0629 \u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629\u061f\",\"options\":[\"\u0639\u0645\u0644\u064a\u0629 \u062a\u062d\u062f\u064a\u062f \u0643\u062a\u0644\u0629 \u0645\u062d\u0644\u0648\u0644 \u0645\u062c\u0647\u0648\u0644\",\"\u062a\u0642\u0646\u064a\u0629 \u0645\u062e\u0628\u0631\u064a\u0629 \u0644\u062a\u062d\u062f\u064a\u062f \u062a\u0631\u0643\u064a\u0632 \u0645\u062d\u0644\u0648\u0644 \u0645\u062c\u0647\u0648\u0644 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u062d\u0644\u0648\u0644 \u0645\u0639\u0644\u0648\u0645 \u0627\u0644\u062a\u0631\u0643\u064a\u0632 \u0628\u062f\u0642\u0629\",\"\u0639\u0645\u0644\u064a\u0629 \u062e\u0644\u0637 \u062d\u0645\u0636 \u0648\u0642\u0627\u0639\u062f\u0629 \u0639\u0634\u0648\u0627\u0626\u064a\u0627\u064b\",\"\u062a\u0642\u0646\u064a\u0629 \u0644\u0632\u064a\u0627\u062f\u0629 \u0633\u0631\u0639\u0629 \u0627\u0644\u062a\u0641\u0627\u0639\u0644 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\"],\"correctAnswer\":\"\u062a\u0642\u0646\u064a\u0629 \u0645\u062e\u0628\u0631\u064a\u0629 \u0644\u062a\u062d\u062f\u064a\u062f \u062a\u0631\u0643\u064a\u0632 \u0645\u062d\u0644\u0648\u0644 \u0645\u062c\u0647\u0648\u0644 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u062d\u0644\u0648\u0644 \u0645\u0639\u0644\u0648\u0645 \u0627\u0644\u062a\u0631\u0643\u064a\u0632 \u0628\u062f\u0642\u0629\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629 \u0647\u064a \u062a\u0642\u0646\u064a\u0629 \u062a\u0633\u062a\u062e\u062f\u0645 \u0644\u062a\u062d\u062f\u064a\u062f \u062a\u0631\u0643\u064a\u0632 \u0645\u062c\u0647\u0648\u0644 \u0644\u0645\u062d\u0644\u0648\u0644 \u0645\u0646 \u062e\u0644\u0627\u0644 \u062a\u0641\u0627\u0639\u0644\u0647 \u0645\u0639 \u0645\u062d\u0644\u0648\u0644 \u0642\u064a\u0627\u0633\u064a (\u0645\u0639\u0644\u0648\u0645 \u0627\u0644\u062a\u0631\u0643\u064a\u0632).\"},{\"question\":\"\u0645\u0627\u0630\u0627 \u062a\u0639\u0646\u064a \u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u0643\u0627\u0641\u0624 \u0641\u064a \u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629\u061f\",\"options\":[\"\u0627\u0644\u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u064a \u064a\u062a\u063a\u064a\u0631 \u0639\u0646\u062f\u0647\u0627 \u0644\u0648\u0646 \u0627\u0644\u0643\u0627\u0634\u0641\",\"\u0627\u0644\u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u064a \u062a\u0643\u0648\u0646 \u0641\u064a\u0647\u0627 \u0643\u0645\u064a\u0629 \u0627\u0644\u062d\u0645\u0636 \u0627\u0644\u0645\u0636\u0627\u0641 \u0623\u0643\u0628\u0631 \u0645\u0646 \u0643\u0645\u064a\u0629 \u0627\u0644\u0642\u0627\u0639\u062f\u0629\",\"\u0627\u0644\u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u064a \u062a\u0643\u0648\u0646 \u0641\u064a\u0647\u0627 \u0643\u0645\u064a\u0629 \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0642\u064a\u0627\u0633\u064a \u0627\u0644\u0645\u0636\u0627\u0641\u0629 \u0645\u0633\u0627\u0648\u064a\u0629 \u062a\u0645\u0627\u0645\u0627\u064b \u0644\u0643\u0645\u064a\u0629 \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0645\u062c\u0647\u0648\u0644 \u0627\u0644\u0644\u0627\u0632\u0645\u0629 \u0644\u0644\u062a\u0641\u0627\u0639\u0644 \u0628\u0634\u0643\u0644 \u0643\u0627\u0645\u0644\",\"\u0627\u0644\u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u064a \u064a\u0643\u0648\u0646 \u0639\u0646\u062f\u0647\u0627 pH = 7 \u062f\u0627\u0626\u0645\u0627\u064b\"],\"correctAnswer\":\"\u0627\u0644\u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u064a \u062a\u0643\u0648\u0646 \u0641\u064a\u0647\u0627 \u0643\u0645\u064a\u0629 \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0642\u064a\u0627\u0633\u064a \u0627\u0644\u0645\u0636\u0627\u0641\u0629 \u0645\u0633\u0627\u0648\u064a\u0629 \u062a\u0645\u0627\u0645\u0627\u064b \u0644\u0643\u0645\u064a\u0629 \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0645\u062c\u0647\u0648\u0644 \u0627\u0644\u0644\u0627\u0632\u0645\u0629 \u0644\u0644\u062a\u0641\u0627\u0639\u0644 \u0628\u0634\u0643\u0644 \u0643\u0627\u0645\u0644\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u0643\u0627\u0641\u0624 \u0647\u064a \u0627\u0644\u0646\u0642\u0637\u0629 \u0627\u0644\u0646\u0638\u0631\u064a\u0629 \u0627\u0644\u062a\u064a \u062a\u062a\u0633\u0627\u0648\u0649 \u0641\u064a\u0647\u0627 \u0639\u062f\u062f \u0645\u0648\u0644\u0627\u062a \u0627\u0644\u062d\u0645\u0636 \u0648\u0627\u0644\u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0645\u062a\u0641\u0627\u0639\u0644\u0629.\"},{\"question\":\"\u0639\u0646\u062f \u0645\u0639\u0627\u064a\u0631\u0629 \u062d\u0645\u0636 \u0642\u0648\u064a \u0645\u0639 \u0642\u0627\u0639\u062f\u0629 \u0642\u0648\u064a\u0629\u060c \u0643\u0645 \u062a\u0643\u0648\u0646 \u0642\u064a\u0645\u0629 pH \u0639\u0646\u062f \u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u0643\u0627\u0641\u0624\u061f\",\"options\":[\"\u0623\u0642\u0644 \u0645\u0646 7\",\"\u0623\u0643\u0628\u0631 \u0645\u0646 7\",\"\u062a\u0633\u0627\u0648\u064a 7\",\"\u0644\u0627 \u064a\u0645\u0643\u0646 \u062a\u062d\u062f\u064a\u062f\u0647\u0627\"],\"correctAnswer\":\"\u062a\u0633\u0627\u0648\u064a 7\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0641\u064a \u0645\u0639\u0627\u064a\u0631\u0629 \u062d\u0645\u0636 \u0642\u0648\u064a \u0648\u0642\u0627\u0639\u062f\u0629 \u0642\u0648\u064a\u0629\u060c \u064a\u0646\u062a\u062c \u0645\u0644\u062d \u0645\u062a\u0639\u0627\u062f\u0644 \u0648\u0645\u0627\u0621\u060c \u0648\u0628\u0627\u0644\u062a\u0627\u0644\u064a \u062a\u0643\u0648\u0646 \u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u0643\u0627\u0641\u0624 \u0639\u0646\u062f pH = 7.\"},{\"question\":\"\u0645\u0627 \u0647\u064a \u0627\u0644\u0645\u0639\u0627\u062f\u0644\u0629 \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629 \u0627\u0644\u0645\u0633\u062a\u062e\u062f\u0645\u0629 \u0641\u064a \u062d\u0633\u0627\u0628\u0627\u062a \u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629 \u0644\u062a\u0641\u0627\u0639\u0644 \u062d\u0645\u0636-\u0642\u0627\u0639\u062f\u0629 \u0628\u0646\u0633\u0628\u0629 1:1\u061f\",\"options\":[\"M\u2081V\u2081 = M\u2082V\u2082\",\"M\u2081 + V\u2081 = M\u2082 + V\u2082\",\"M\u2081 \/ V\u2081 = M\u2082 \/ V\u2082\",\"M\u2081 \u00d7 V\u2082 = M\u2082 \u00d7 V\u2081\"],\"correctAnswer\":\"M\u2081V\u2081 = M\u2082V\u2082\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0641\u064a \u062a\u0641\u0627\u0639\u0644\u0627\u062a \u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629 \u0628\u0646\u0633\u0628\u0629 1:1\u060c \u064a\u0643\u0648\u0646 \u0639\u062f\u062f \u0645\u0648\u0644\u0627\u062a \u0627\u0644\u062d\u0645\u0636 \u0645\u0633\u0627\u0648\u064a\u0627\u064b \u0644\u0639\u062f\u062f \u0645\u0648\u0644\u0627\u062a \u0627\u0644\u0642\u0627\u0639\u062f\u0629\u060c \u0645\u0645\u0627 \u064a\u0624\u062f\u064a \u0625\u0644\u0649 \u0627\u0644\u0639\u0644\u0627\u0642\u0629 M\u2081V\u2081 = M\u2082V\u2082.\"},{\"question\":\"\u0644\u0632\u0645 25.0 mL \u0645\u0646 \u0645\u062d\u0644\u0648\u0644 NaOH \u062a\u0631\u0643\u064a\u0632\u0647 0.10 M \u0644\u0645\u0639\u0627\u064a\u0631\u0629 20.0 mL \u0645\u0646 \u0645\u062d\u0644\u0648\u0644 HCl. \u0645\u0627 \u0647\u0648 \u062a\u0631\u0643\u064a\u0632 \u0645\u062d\u0644\u0648\u0644 HCl\u061f\",\"options\":[\"0.10 M\",\"0.125 M\",\"0.08 M\",\"0.20 M\"],\"correctAnswer\":\"0.125 M\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 (M \u00d7 V)<sub>\u062d\u0645\u0636<\/sub> = (M \u00d7 V)<sub>\u0642\u0627\u0639\u062f\u0629<\/sub>: M<sub>\u062d\u0645\u0636<\/sub> \u00d7 20.0 mL = 0.10 M \u00d7 25.0 mL. \u0625\u0630\u0646 M<sub>\u062d\u0645\u0636<\/sub> = (0.10 \u00d7 25.0) \/ 20.0 = 0.125 M.\"},{\"question\":\"\u0645\u0627 \u0647\u064a \u0627\u0644\u0643\u0648\u0627\u0634\u0641 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629\u061f\",\"options\":[\"\u0645\u0648\u0627\u062f \u062a\u0632\u064a\u062f \u0645\u0646 \u0633\u0631\u0639\u0629 \u0627\u0644\u062a\u0641\u0627\u0639\u0644\",\"\u0645\u0648\u0627\u062f \u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629 \u0639\u0636\u0648\u064a\u0629 \u0636\u0639\u064a\u0641\u0629 \u064a\u062a\u063a\u064a\u0631 \u0644\u0648\u0646\u0647\u0627 \u0645\u0639 \u062a\u063a\u064a\u0631 \u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646\u064a \u0644\u0644\u0645\u062d\u0644\u0648\u0644\",\"\u0645\u0648\u0627\u062f \u062a\u0633\u062a\u062e\u062f\u0645 \u0644\u062a\u0631\u0643\u064a\u0632 \u0627\u0644\u0645\u062d\u0627\u0644\u064a\u0644\",\"\u0645\u0648\u0627\u062f \u062a\u0642\u0644\u0644 \u0645\u0646 \u062d\u0645\u0648\u0636\u0629 \u0627\u0644\u0645\u062d\u0627\u0644\u064a\u0644\"],\"correctAnswer\":\"\u0645\u0648\u0627\u062f \u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629 \u0639\u0636\u0648\u064a\u0629 \u0636\u0639\u064a\u0641\u0629 \u064a\u062a\u063a\u064a\u0631 \u0644\u0648\u0646\u0647\u0627 \u0645\u0639 \u062a\u063a\u064a\u0631 \u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646\u064a \u0644\u0644\u0645\u062d\u0644\u0648\u0644\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0627\u0644\u0643\u0648\u0627\u0634\u0641 \u0647\u064a \u0623\u062d\u0645\u0627\u0636 \u0623\u0648 \u0642\u0648\u0627\u0639\u062f \u0639\u0636\u0648\u064a\u0629 \u0636\u0639\u064a\u0641\u0629 \u0644\u0647\u0627 \u0623\u0644\u0648\u0627\u0646 \u0645\u062e\u062a\u0644\u0641\u0629 \u062d\u0633\u0628 \u0642\u064a\u0645\u0629 \u0627\u0644\u0640 pH.\"},{\"question\":\"\u0627\u0644\u0635\u064a\u063a\u0629 \u0627\u0644\u0639\u0627\u0645\u0629 \u0644\u0643\u0627\u0634\u0641 \u062d\u0645\u0636\u064a \u064a\u0645\u0643\u0646 \u062a\u0645\u062b\u064a\u0644\u0647\u0627 \u0628\u0640 HIn. \u0645\u0627 \u0627\u0644\u0630\u064a \u064a\u062d\u062f\u062b \u0639\u0646\u062f\u0645\u0627 \u064a\u0636\u0627\u0641 \u0647\u0630\u0627 \u0627\u0644\u0643\u0627\u0634\u0641 \u0625\u0644\u0649 \u0645\u062d\u0644\u0648\u0644 \u0642\u0627\u0639\u062f\u064a\u061f\",\"options\":[\"\u064a\u0632\u0627\u062d \u0627\u0644\u0627\u062a\u0632\u0627\u0646 \u0646\u062d\u0648 \u0627\u0644\u064a\u0633\u0627\u0631 \u0648\u064a\u0633\u0648\u062f \u0644\u0648\u0646 HIn\",\"\u064a\u0632\u0627\u062d \u0627\u0644\u0627\u062a\u0632\u0627\u0646 \u0646\u062d\u0648 \u0627\u0644\u064a\u0645\u064a\u0646 \u0648\u064a\u0633\u0648\u062f \u0644\u0648\u0646 In\u207b\",\"\u0644\u0627 \u064a\u062d\u062f\u062b \u0623\u064a \u062a\u063a\u064a\u064a\u0631 \u0641\u064a \u0644\u0648\u0646 \u0627\u0644\u0643\u0627\u0634\u0641\",\"\u064a\u062d\u062f\u062b \u062a\u0631\u0633\u064a\u0628 \u0644\u0644\u0643\u0627\u0634\u0641\"],\"correctAnswer\":\"\u064a\u0632\u0627\u062d \u0627\u0644\u0627\u062a\u0632\u0627\u0646 \u0646\u062d\u0648 \u0627\u0644\u064a\u0645\u064a\u0646 \u0648\u064a\u0633\u0648\u062f \u0644\u0648\u0646 In\u207b\",\"difficulty\":\"\u0635\u0639\u0628\",\"explanation\":\"\u0641\u064a \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0642\u0627\u0639\u062f\u064a\u060c \u062a\u062a\u0641\u0627\u0639\u0644 OH\u207b \u0645\u0639 H\u2083O\u207a\u060c \u0645\u0645\u0627 \u064a\u0642\u0644\u0644 \u062a\u0631\u0643\u064a\u0632 H\u2083O\u207a. \u0648\u0641\u0642\u0627\u064b \u0644\u0645\u0628\u062f\u0623 \u0644\u0648\u0634\u0627\u062a\u0644\u064a\u064a\u0647\u060c \u064a\u0632\u0627\u062d \u0627\u0644\u0627\u062a\u0632\u0627\u0646 HIn + H\u2082O \u21cc H\u2083O\u207a + In\u207b \u0646\u062d\u0648 \u0627\u0644\u064a\u0645\u064a\u0646 \u0644\u062a\u0639\u0648\u064a\u0636 \u0627\u0644\u0646\u0642\u0635\u060c \u0641\u064a\u0633\u0648\u062f \u0644\u0648\u0646 \u0627\u0644\u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0645\u0631\u0627\u0641\u0642\u0629 In\u207b.\"},{\"question\":\"\u0623\u064a \u0627\u0644\u0643\u0648\u0627\u0634\u0641 \u0627\u0644\u062a\u0627\u0644\u064a\u0629 \u064a\u062a\u063a\u064a\u0631 \u0644\u0648\u0646\u0647 \u0645\u0646 \u0639\u062f\u064a\u0645 \u0627\u0644\u0644\u0648\u0646 \u0625\u0644\u0649 \u0632\u0647\u0631\u064a \u0639\u0646\u062f \u0627\u0644\u0645\u062f\u0649 \u0627\u0644\u062a\u0642\u0631\u064a\u0628\u064a 8.2 \u2013 10.0\u061f\",\"options\":[\"\u0627\u0644\u0645\u064a\u062b\u064a\u0644 \u0627\u0644\u0628\u0631\u062a\u0642\u0627\u0644\u064a\",\"\u0627\u0644\u0628\u0631\u0648\u0645\u0648\u062b\u064a\u0645\u0648\u0644 \u0627\u0644\u0623\u0632\u0631\u0642\",\"\u0627\u0644\u0641\u064a\u0646\u0648\u0644\u0641\u062b\u0627\u0644\u064a\u0646\",\"\u0627\u0644\u0645\u064a\u062b\u064a\u0644 \u0627\u0644\u0623\u062d\u0645\u0631\"],\"correctAnswer\":\"\u0627\u0644\u0641\u064a\u0646\u0648\u0644\u0641\u062b\u0627\u0644\u064a\u0646\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0627\u0644\u0641\u064a\u0646\u0648\u0644\u0641\u062b\u0627\u0644\u064a\u0646 \u0647\u0648 \u0627\u0644\u0643\u0627\u0634\u0641 \u0627\u0644\u0645\u0639\u0631\u0648\u0641 \u0627\u0644\u0630\u064a \u064a\u0643\u0648\u0646 \u0639\u062f\u064a\u0645 \u0627\u0644\u0644\u0648\u0646 \u0641\u064a \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u062d\u0645\u0636\u064a \u0648\u064a\u0632\u0647\u0631\u064a \u0641\u064a \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u0642\u0627\u0639\u062f\u064a \u0636\u0645\u0646 \u0647\u0630\u0627 \u0627\u0644\u0645\u062f\u0649.\"},{\"question\":\"\u0644\u0645\u0627\u0630\u0627 \u064a\u0639\u062a\u0628\u0631 \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0643\u0627\u0634\u0641 \u0627\u0644\u0645\u0646\u0627\u0633\u0628 \u0623\u0645\u0631\u0627\u064b \u0645\u0647\u0645\u0627\u064b \u0641\u064a \u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629\u061f\",\"options\":[\"\u0644\u062c\u0639\u0644 \u0627\u0644\u062a\u0641\u0627\u0639\u0644 \u0623\u0633\u0631\u0639\",\"\u0644\u0632\u064a\u0627\u062f\u0629 \u062d\u062c\u0645 \u0627\u0644\u0645\u062d\u0644\u0648\u0644\",\"\u0644\u0636\u0645\u0627\u0646 \u0623\u0646 \u064a\u062a\u063a\u064a\u0631 \u0644\u0648\u0646 \u0627\u0644\u0643\u0627\u0634\u0641 \u0639\u0646\u062f \u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u0643\u0627\u0641\u0624 \u0623\u0648 \u0642\u0631\u064a\u0628\u064b\u0627 \u0645\u0646\u0647\u0627\",\"\u0644\u062a\u063a\u064a\u064a\u0631 \u062a\u0631\u0643\u064a\u0632 \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0642\u064a\u0627\u0633\u064a\"],\"correctAnswer\":\"\u0644\u0636\u0645\u0627\u0646 \u0623\u0646 \u064a\u062a\u063a\u064a\u0631 \u0644\u0648\u0646 \u0627\u0644\u0643\u0627\u0634\u0641 \u0639\u0646\u062f \u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u0643\u0627\u0641\u0624 \u0623\u0648 \u0642\u0631\u064a\u0628\u064b\u0627 \u0645\u0646\u0647\u0627\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u064a\u062c\u0628 \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0643\u0627\u0634\u0641 \u0628\u062d\u064a\u062b \u062a\u062a\u0637\u0627\u0628\u0642 \u0646\u0642\u0637\u0629 \u0646\u0647\u0627\u064a\u062a\u0647 (\u062a\u063a\u064a\u0631 \u0627\u0644\u0644\u0648\u0646) \u0645\u0639 \u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u0643\u0627\u0641\u0624 \u0644\u0644\u062a\u0641\u0627\u0639\u0644 \u0644\u0636\u0645\u0627\u0646 \u062f\u0642\u0629 \u0627\u0644\u0646\u062a\u0627\u0626\u062c.\"},{\"question\":\"\u0625\u0630\u0627 \u0643\u0627\u0646 \u062a\u0631\u0643\u064a\u0632 [H\u2083O\u207a] \u0641\u064a \u0645\u062d\u0644\u0648\u0644 \u0645\u0627 \u0647\u0648 3.16 \u00d7 10\u207b\u2075 M\u060c \u0641\u0645\u0627 \u0647\u064a \u0642\u064a\u0645\u0629 pH \u0627\u0644\u062a\u0642\u0631\u064a\u0628\u064a\u0629 \u0644\u0644\u0645\u062d\u0644\u0648\u0644\u061f\",\"options\":[\"5.5\",\"4.5\",\"3.5\",\"6.5\"],\"correctAnswer\":\"4.5\",\"difficulty\":\"\u0635\u0639\u0628\",\"explanation\":\"pH = -log[H\u2083O\u207a] = -log(3.16 \u00d7 10\u207b\u2075) \u2248 - (log(3.16) + log(10\u207b\u2075)) \u2248 - (0.5 - 5) = 4.5.\"},{\"question\":\"\u0623\u064a \u0645\u0646 \u0627\u0644\u0623\u0632\u0648\u0627\u062c \u0627\u0644\u062a\u0627\u0644\u064a\u0629 \u064a\u0645\u062b\u0644 \u062d\u0645\u0636\u0627\u064b \u0642\u0648\u064a\u0627\u064b \u0648\u0642\u0627\u0639\u062f\u0629 \u0642\u0648\u064a\u0629 \u0639\u0644\u0649 \u0627\u0644\u062a\u0648\u0627\u0644\u064a\u061f\",\"options\":[\"HF \u0648 NH\u2083\",\"HNO\u2083 \u0648 KOH\",\"H\u2082SO\u2084 \u0648 Mg(OH)\u2082\",\"CH\u2083COOH \u0648 NaOH\"],\"correctAnswer\":\"HNO\u2083 \u0648 KOH\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"HNO\u2083 (\u062d\u0645\u0636 \u0627\u0644\u0646\u064a\u062a\u0631\u064a\u0643) \u0647\u0648 \u062d\u0645\u0636 \u0642\u0648\u064a \u0648 KOH (\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f \u0627\u0644\u0628\u0648\u062a\u0627\u0633\u064a\u0648\u0645) \u0647\u0648 \u0642\u0627\u0639\u062f\u0629 \u0642\u0648\u064a\u0629. HF \u0648 NH\u2083 \u0636\u0639\u064a\u0641\u0627\u0646. Mg(OH)\u2082 \u0642\u0627\u0639\u062f\u0629 \u0642\u0648\u064a\u0629 \u0646\u0633\u0628\u064a\u0627\u064b \u0644\u0643\u0646 \u0644\u064a\u0633\u062a \u0628\u0646\u0641\u0633 \u0642\u0648\u0629 KOH\u060c \u0648\u0627\u0644\u0628\u0631\u0648\u062a\u0648\u0646 \u0627\u0644\u062b\u0627\u0646\u064a \u0644\u0640 H\u2082SO\u2084 \u0636\u0639\u064a\u0641 \u0646\u0633\u0628\u064a\u0627\u064b. CH\u2083COOH \u062d\u0645\u0636 \u0636\u0639\u064a\u0641.\"},{\"question\":\"\u0645\u0627\u0630\u0627 \u064a\u062d\u062f\u062b \u0644\u062a\u0631\u0643\u064a\u0632 [OH\u207b] \u0641\u064a \u0645\u062d\u0644\u0648\u0644 \u0625\u0630\u0627 \u0632\u0627\u062f\u062a \u062d\u0645\u0648\u0636\u062a\u0647\u061f\",\"options\":[\"\u064a\u0632\u062f\u0627\u062f\",\"\u064a\u0642\u0644\",\"\u064a\u0628\u0642\u0649 \u062b\u0627\u0628\u062a\u0627\u064b\",\"\u064a\u0635\u0628\u062d \u0645\u0633\u0627\u0648\u064a\u0627\u064b \u0644\u0640 [H\u2083O\u207a]\"],\"correctAnswer\":\"\u064a\u0642\u0644\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0625\u0630\u0627 \u0632\u0627\u062f\u062a \u062d\u0645\u0648\u0636\u0629 \u0627\u0644\u0645\u062d\u0644\u0648\u0644\u060c \u0641\u0647\u0630\u0627 \u064a\u0639\u0646\u064a \u0632\u064a\u0627\u062f\u0629 [H\u2083O\u207a]. \u0648\u0628\u0645\u0627 \u0623\u0646 Kw \u062b\u0627\u0628\u062a\u060c \u0641\u0625\u0646 \u0632\u064a\u0627\u062f\u0629 [H\u2083O\u207a] \u064a\u062c\u0628 \u0623\u0646 \u064a\u0642\u0627\u0628\u0644\u0647\u0627 \u0646\u0642\u0635\u0627\u0646 \u0641\u064a [OH\u207b] \u0644\u0644\u062d\u0641\u0627\u0638 \u0639\u0644\u0649 \u062d\u0627\u0635\u0644 \u0627\u0644\u0636\u0631\u0628 \u062b\u0627\u0628\u062a\u0627\u064b.\"},{\"question\":\"\u0641\u064a \u062a\u0641\u0627\u0639\u0644 \u0627\u0644\u062a\u0623\u064a\u0646 \u0627\u0644\u0630\u0627\u062a\u064a \u0644\u0644\u0645\u0627\u0621\u060c \u0623\u064a \u062c\u0632\u064a\u0621 \u0645\u0627\u0621 \u064a\u0639\u0645\u0644 \u0643\u062d\u0645\u0636\u061f\",\"options\":[\"\u0627\u0644\u0630\u064a \u064a\u0643\u062a\u0633\u0628 \u0628\u0631\u0648\u062a\u0648\u0646\u0627\u064b\",\"\u0627\u0644\u0630\u064a \u064a\u0641\u0642\u062f \u0628\u0631\u0648\u062a\u0648\u0646\u0627\u064b\",\"\u0627\u0644\u0630\u064a \u0644\u0627 \u064a\u0634\u0627\u0631\u0643 \u0641\u064a \u0627\u0644\u062a\u0641\u0627\u0639\u0644\",\"\u0627\u0644\u0630\u064a \u064a\u062a\u0623\u064a\u0646 \u0628\u0627\u0644\u0643\u0627\u0645\u0644\"],\"correctAnswer\":\"\u0627\u0644\u0630\u064a \u064a\u0641\u0642\u062f \u0628\u0631\u0648\u062a\u0648\u0646\u0627\u064b\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0648\u0641\u0642\u0627\u064b \u0644\u0645\u0641\u0647\u0648\u0645 \u0628\u0631\u0648\u0646\u0633\u062a\u062f-\u0644\u0648\u0631\u064a\u060c \u0627\u0644\u062d\u0645\u0636 \u0647\u0648 \u0627\u0644\u0645\u0627\u062f\u0629 \u0627\u0644\u0645\u0627\u0646\u062d\u0629 \u0644\u0644\u0628\u0631\u0648\u062a\u0648\u0646. \u0641\u064a \u0627\u0644\u062a\u0623\u064a\u0646 \u0627\u0644\u0630\u0627\u062a\u064a\u060c \u0623\u062d\u062f \u062c\u0632\u064a\u0626\u0627\u062a \u0627\u0644\u0645\u0627\u0621 \u064a\u0645\u0646\u062d \u0628\u0631\u0648\u062a\u0648\u0646\u0627\u064b (\u064a\u0633\u0644\u0643 \u0633\u0644\u0648\u0643 \u0627\u0644\u062d\u0645\u0636) \u0648\u0627\u0644\u0622\u062e\u0631 \u064a\u0633\u062a\u0642\u0628\u0644\u0647 (\u064a\u0633\u0644\u0643 \u0633\u0644\u0648\u0643 \u0627\u0644\u0642\u0627\u0639\u062f\u0629).\"},{\"question\":\"\u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u0642\u064a\u0645\u0629 pOH \u0644\u0645\u062d\u0644\u0648\u0644 \u0642\u0627\u0639\u062f\u064a \u062a\u0633\u0627\u0648\u064a 1.5\u060c \u0641\u0645\u0627 \u0647\u0648 \u062a\u0631\u0643\u064a\u0632 [OH\u207b] \u0627\u0644\u062a\u0642\u0631\u064a\u0628\u064a\u061f\",\"options\":[\"10\u207b\u00b9\u00b7\u2075 M\",\"3.16 \u00d7 10\u207b\u00b2 M\",\"3.16 \u00d7 10\u207b\u00b9\u00b2 M\",\"12.5 M\"],\"correctAnswer\":\"3.16 \u00d7 10\u207b\u00b2 M\",\"difficulty\":\"\u0635\u0639\u0628\",\"explanation\":\"[OH\u207b] = 10\u207bpOH = 10\u207b\u00b9\u00b7\u2075 M. \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0622\u0644\u0629 \u0627\u0644\u062d\u0627\u0633\u0628\u0629\u060c 10\u207b\u00b9\u00b7\u2075 \u2248 0.0316 M \u0623\u0648 3.16 \u00d7 10\u207b\u00b2 M.\"},{\"question\":\"\u0645\u0627 \u0647\u064a \u0627\u0644\u0645\u0627\u062f\u0629 \u0627\u0644\u062a\u064a \u064a\u062a\u0645 \u062a\u062d\u062f\u064a\u062f \u062a\u0631\u0643\u064a\u0632\u0647\u0627 \u0641\u064a \u0639\u0645\u0644\u064a\u0629 \u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629 \u0648\u062a\u0639\u0631\u0641 \u0628\u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0645\u0631\u0627\u062f \u062a\u062d\u0644\u064a\u0644\u0647\u061f\",\"options\":[\"\u0627\u0644\u0643\u0627\u0634\u0641\",\"\u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0642\u064a\u0627\u0633\u064a (Titrant)\",\"\u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0645\u0631\u0627\u062f \u062a\u062d\u0644\u064a\u0644\u0647 (Analyte)\",\"\u0627\u0644\u0646\u0627\u062a\u062c\"],\"correctAnswer\":\"\u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0645\u0631\u0627\u062f \u062a\u062d\u0644\u064a\u0644\u0647 (Analyte)\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0645\u0631\u0627\u062f \u062a\u062d\u0644\u064a\u0644\u0647 (Analyte) \u0647\u0648 \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0630\u0648 \u0627\u0644\u062a\u0631\u0643\u064a\u0632 \u0627\u0644\u0645\u062c\u0647\u0648\u0644 \u0627\u0644\u0630\u064a \u064a\u062a\u0645 \u062a\u062d\u062f\u064a\u062f \u062a\u0631\u0643\u064a\u0632\u0647 \u0641\u064a \u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629.\"},{\"question\":\"\u0643\u0627\u0634\u0641 \u0627\u0644\u0645\u064a\u062b\u064a\u0644 \u0627\u0644\u0628\u0631\u062a\u0642\u0627\u0644\u064a \u064a\u0643\u0648\u0646 \u0644\u0648\u0646\u0647 \u0623\u062d\u0645\u0631 \u0641\u064a \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u062d\u0645\u0636\u064a. \u0645\u0627\u0630\u0627 \u0633\u064a\u0643\u0648\u0646 \u0644\u0648\u0646\u0647 \u0641\u064a \u0645\u062d\u0644\u0648\u0644 \u0644\u0647 pH = 5\u061f\",\"options\":[\"\u0623\u062d\u0645\u0631\",\"\u0623\u0635\u0641\u0631\",\"\u0623\u0632\u0631\u0642\",\"\u0639\u062f\u064a\u0645 \u0627\u0644\u0644\u0648\u0646\"],\"correctAnswer\":\"\u0623\u0635\u0641\u0631\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0645\u062f\u0649 \u062a\u063a\u064a\u0631 \u0644\u0648\u0646 \u0627\u0644\u0645\u064a\u062b\u064a\u0644 \u0627\u0644\u0628\u0631\u062a\u0642\u0627\u0644\u064a \u0647\u0648 2.9 \u2013 4.0. \u0641\u064a \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u062d\u0645\u0636\u064a (\u0623\u0642\u0644 \u0645\u0646 2.9) \u064a\u0643\u0648\u0646 \u0623\u062d\u0645\u0631\u060c \u0648\u0641\u064a \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u0642\u0627\u0639\u062f\u064a (\u0623\u0643\u0628\u0631 \u0645\u0646 4.0) \u064a\u0643\u0648\u0646 \u0623\u0635\u0641\u0631. \u0628\u0645\u0627 \u0623\u0646 pH=5 \u0623\u0643\u0628\u0631 \u0645\u0646 \u0627\u0644\u0645\u062f\u0649 \u0627\u0644\u062d\u0645\u0636\u064a\u060c \u0633\u064a\u0643\u0648\u0646 \u0623\u0635\u0641\u0631.\"},{\"question\":\"\u0645\u0627 \u0647\u0648 \u0627\u0644\u062d\u0645\u0636 \u0627\u0644\u0642\u0648\u064a \u0627\u0644\u0630\u064a \u064a\u0634\u0627\u0631 \u0625\u0644\u0649 '\u0627\u0644\u0628\u0631\u0648\u062a\u0648\u0646 \u0627\u0644\u0623\u0648\u0644' \u0641\u0642\u0637 \u0641\u064a \u0642\u0627\u0626\u0645\u0629 \u0627\u0644\u062d\u0645\u0648\u0636 \u0627\u0644\u0642\u0648\u064a\u0629\u061f\",\"options\":[\"HCl\",\"HNO\u2083\",\"H\u2082SO\u2084\",\"HBr\"],\"correctAnswer\":\"H\u2082SO\u2084\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u062d\u0645\u0636 \u0627\u0644\u0643\u0628\u0631\u064a\u062a\u064a\u0643 (H\u2082SO\u2084) \u0647\u0648 \u062d\u0645\u0636 \u062b\u0646\u0627\u0626\u064a \u0627\u0644\u0628\u0631\u0648\u062a\u0648\u0646. \u0627\u0644\u0628\u0631\u0648\u062a\u0648\u0646 \u0627\u0644\u0623\u0648\u0644 \u064a\u062a\u0623\u064a\u0646 \u0628\u0634\u0643\u0644 \u0643\u0627\u0645\u0644\u060c \u0628\u064a\u0646\u0645\u0627 \u0627\u0644\u0628\u0631\u0648\u062a\u0648\u0646 \u0627\u0644\u062b\u0627\u0646\u064a \u064a\u062a\u0623\u064a\u0646 \u0628\u0634\u0643\u0644 \u062c\u0632\u0626\u064a (\u062d\u0645\u0636 \u0636\u0639\u064a\u0641)\u060c \u0644\u0630\u0644\u0643 \u064a\u064f\u0630\u0643\u0631 \u0627\u0644\u0628\u0631\u0648\u062a\u0648\u0646 \u0627\u0644\u0623\u0648\u0644 \u0641\u0642\u0637 \u0636\u0645\u0646 \u0627\u0644\u062d\u0645\u0648\u0636 \u0627\u0644\u0642\u0648\u064a\u0629.\"},{\"question\":\"\u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u0642\u064a\u0645\u0629 pH \u0644\u0645\u062d\u0644\u0648\u0644 \u0645\u0627 \u062a\u0633\u0627\u0648\u064a 7 \u0639\u0646\u062f 25\u00b0C\u060c \u0641\u0645\u0627 \u0647\u0648 \u062a\u0635\u0646\u064a\u0641 \u0647\u0630\u0627 \u0627\u0644\u0645\u062d\u0644\u0648\u0644\u061f\",\"options\":[\"\u062d\u0645\u0636\u064a\",\"\u0642\u0627\u0639\u062f\u064a\",\"\u0645\u062a\u0639\u0627\u062f\u0644\",\"\u0644\u0627 \u064a\u0645\u0643\u0646 \u062a\u062d\u062f\u064a\u062f\u0647\"],\"correctAnswer\":\"\u0645\u062a\u0639\u0627\u062f\u0644\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0630\u064a \u062a\u0643\u0648\u0646 \u0642\u064a\u0645\u0629 pH \u0644\u0647 \u062a\u0633\u0627\u0648\u064a 7 \u0639\u0646\u062f 25\u00b0C \u064a\u064f\u0635\u0646\u0641 \u0639\u0644\u0649 \u0623\u0646\u0647 \u0645\u062a\u0639\u0627\u062f\u0644.\"}];\n \n const totalQuestions = quizData.length;\n let userAnswers = new Array(totalQuestions).fill(\"\");\n let currentIndex = 0;\n let isSubmitted = false;\n \n const dynamicArea = document.getElementById(\"dynamic-question-area\");\n const currentQSpan = document.getElementById(\"current-q-num\");\n const totalQSpan = document.getElementById(\"total-q-count\");\n const difficultyBadge = document.getElementById(\"difficulty-badge\");\n const answeredCountSpan = document.getElementById(\"answered-count\");\n const progressPercentSpan = document.getElementById(\"progress-percent\");\n const progressBar = document.getElementById(\"progress-bar\");\n const resultPanel = document.getElementById(\"result-panel\");\n const finalScoreSpan = document.getElementById(\"final-score-text\");\n const resultMsgSpan = document.getElementById(\"result-message\");\n \n const firstBtn = document.getElementById(\"first-btn\");\n const prevBtn = document.getElementById(\"prev-btn\");\n const nextBtn = document.getElementById(\"next-btn\");\n const lastBtn = document.getElementById(\"last-btn\");\n const submitBtn = document.getElementById(\"submit-final-btn\");\n const resetBtn = document.getElementById(\"reset-exam-btn\");\n \n totalQSpan.textContent = totalQuestions;\n \n function updateProgressStats() {\n const answered = userAnswers.filter(a => a !== \"\").length;\n answeredCountSpan.textContent = answered;\n const percent = Math.round((answered \/ totalQuestions) * 100);\n progressPercentSpan.textContent = `${percent}%`;\n progressBar.style.width = `${percent}%`;\n }\n \n function saveCurrentSelected() {\n const selectedRadio = document.querySelector(`input[name=\"current-question-radio\"]:checked`);\n if (selectedRadio) {\n userAnswers[currentIndex] = selectedRadio.value;\n }\n updateProgressStats();\n }\n \n function escapeHtml(str) {\n if(!str) return \"\";\n return str.replace(\/[&<>]\/g, function(m) {\n if (m === '&') return '&';\n if (m === '<') return '<';\n if (m === '>') return '>';\n return m;\n });\n }\n \n function renderCurrentQuestion() {\n const q = quizData[currentIndex];\n const selectedAns = userAnswers[currentIndex];\n const isCorrectMode = isSubmitted;\n let optionsHtml = \"\";\n q.options.forEach((opt, idx) => {\n const isSelected = (selectedAns === opt);\n let additionalClasses = \"\";\n let disabledAttr = isCorrectMode ? \"disabled\" : \"\";\n let radioChecked = isSelected ? \"checked\" : \"\";\n if (isCorrectMode) {\n const isCorrectAnswer = (opt === q.correctAnswer);\n if (isCorrectAnswer) additionalClasses = \"correct-highlight\";\n else if (isSelected && !isCorrectAnswer) additionalClasses = \"incorrect-highlight\";\n }\n optionsHtml += `\n <div class=\"option-btn ${additionalClasses} ${isCorrectMode ? 'disabled-opt' : ''}\">\n <input type=\"radio\" name=\"current-question-radio\" value=\"${escapeHtml(opt)}\" id=\"opt_${idx}\" ${radioChecked} ${disabledAttr} class=\"option-radio\">\n <label for=\"opt_${idx}\" class=\"option-text cursor-pointer flex-1\">${escapeHtml(opt)}<\/label>\n <\/div>\n `;\n });\n let explanationHtml = \"\";\n if (isCorrectMode) {\n explanationHtml = `<div class=\"explanation-box\"><span class=\"font-bold text-indigo-300\">📖 \u0627\u0644\u062a\u0648\u0636\u064a\u062d:<\/span><br>${escapeHtml(q.explanation || \"\u0627\u0644\u0625\u062c\u0627\u0628\u0629 \u0627\u0644\u0635\u062d\u064a\u062d\u0629: \" + q.correctAnswer)}<\/div>`;\n }\n const difficultyColor = q.difficulty === '\u0633\u0647\u0644' ? 'text-green-300' : q.difficulty === '\u0645\u062a\u0648\u0633\u0637' ? 'text-yellow-300' : 'text-rose-300';\n const fullHtml = `\n <div class=\"mb-2\">\n <div class=\"flex justify-between items-start flex-wrap gap-2\">\n <h2 class=\"text-xl md:text-2xl font-semibold text-white leading-tight\">${escapeHtml(q.question)}<\/h2>\n <span class=\"badge-difficulty ${difficultyColor} border border-white\/20\">⭐ ${q.difficulty || '\u0645\u062a\u0648\u0633\u0637'}<\/span>\n <\/div>\n <\/div>\n <div class=\"mt-4 space-y-2\">${optionsHtml}<\/div>\n ${explanationHtml}\n `;\n dynamicArea.innerHTML = fullHtml;\n if (!isCorrectMode) {\n const radioInputs = document.querySelectorAll(`input[name=\"current-question-radio\"]`);\n radioInputs.forEach(radio => {\n radio.addEventListener(\"change\", () => {\n userAnswers[currentIndex] = radio.value;\n updateProgressStats();\n });\n });\n }\n currentQSpan.textContent = currentIndex + 1;\n difficultyBadge.innerHTML = `<span class=\"text-indigo-200\">\u0627\u0644\u0635\u0639\u0648\u0628\u0629:<\/span> <strong class=\"${difficultyColor}\">${q.difficulty || '\u0645\u062a\u0648\u0633\u0637'}<\/strong>`;\n updateProgressStats();\n }\n \n function goToQuestion(newIndex) {\n if (!isSubmitted) saveCurrentSelected();\n currentIndex = Math.min(totalQuestions - 1, Math.max(0, newIndex));\n renderCurrentQuestion();\n updateNavButtonsState();\n }\n \n function updateNavButtonsState() {\n firstBtn.disabled = (currentIndex === 0);\n prevBtn.disabled = (currentIndex === 0);\n nextBtn.disabled = (currentIndex === totalQuestions - 1);\n lastBtn.disabled = (currentIndex === totalQuestions - 1);\n }\n \n function calculateAndShowResult() {\n if (isSubmitted) return;\n saveCurrentSelected();\n let score = 0;\n for (let i = 0; i < totalQuestions; i++) {\n if (userAnswers[i] === quizData[i].correctAnswer) score++;\n }\n isSubmitted = true;\n resultPanel.classList.remove(\"hidden\");\n finalScoreSpan.innerText = `${score} \/ ${totalQuestions}`;\n let percentVal = Math.round((score \/ totalQuestions) * 100);\n resultMsgSpan.innerText = percentVal >= 70 ? \"🏆 \u0623\u062f\u0627\u0621 \u0631\u0627\u0626\u0639! 🎉\" : (percentVal >= 50 ? \"📘 \u062c\u064a\u062f\u060c \u064a\u0645\u0643\u0646\u0643 \u0645\u0631\u0627\u062c\u0639\u0629 \u0628\u0639\u0636 \u0627\u0644\u0645\u0641\u0627\u0647\u064a\u0645.\" : \"📚 \u062a\u062d\u062a\u0627\u062c \u0645\u0631\u0627\u062c\u0639\u0629 \u0627\u0644\u0642\u0648\u0627\u0646\u064a\u0646 \u0648\u0627\u0644\u0646\u0638\u0631\u064a\u0629.\");\n renderCurrentQuestion();\n submitBtn.disabled = true;\n submitBtn.classList.add(\"opacity-50\", \"cursor-not-allowed\");\n }\n \n function resetExam() {\n isSubmitted = false;\n userAnswers = new Array(totalQuestions).fill(\"\");\n currentIndex = 0;\n resultPanel.classList.add(\"hidden\");\n submitBtn.disabled = false;\n submitBtn.classList.remove(\"opacity-50\", \"cursor-not-allowed\");\n renderCurrentQuestion();\n updateProgressStats();\n updateNavButtonsState();\n }\n \n firstBtn.addEventListener(\"click\", () => goToQuestion(0));\n prevBtn.addEventListener(\"click\", () => goToQuestion(currentIndex - 1));\n nextBtn.addEventListener(\"click\", () => goToQuestion(currentIndex + 1));\n lastBtn.addEventListener(\"click\", () => goToQuestion(totalQuestions - 1));\n submitBtn.addEventListener(\"click\", calculateAndShowResult);\n resetBtn.addEventListener(\"click\", resetExam);\n \n renderCurrentQuestion();\n updateNavButtonsState();\n <\/script>\n<\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"<p>\u0627\u062e\u062a\u0628\u0627\u0631 \u062a\u0641\u0627\u0639\u0644\u064a: \u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646\u064a \u0648\u0627\u0644\u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u0645\u0624\u062b\u0631\u0629 🧪 \u0627\u062e\u062a\u0628\u0627\u0631: \u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646\u064a \u0648\u0627\u0644\u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u0645\u0624\u062b\u0631\u0629 \u0627\u0644\u062b\u0627\u0646\u0648\u064a – \u0627\u0644\u0635\u0641 \u0627\u0644\u062b\u0627\u0646\u064a \u0639\u0634\u0631 – \u0627\u0644\u0645\u0633\u0627\u0631 \u0627\u0644\u0623\u0643\u0627\u062f\u064a\u0645\u064a | \u0627\u0644\u062f\u0631\u0633 \u0627\u0644\u062b\u0627\u0646\u064a 📋 \u0627\u0644\u0633\u0624\u0627\u0644 1 \/ 0 \u2713 \u0627\u0644\u0645\u062c\u0627\u0628 \u0639\u0646\u0647: 0 \u0645\u0646 0 \u0627\u0644\u062a\u0642\u062f\u0645 \u0641\u064a \u0627\u0644\u0623\u0633\u0626\u0644\u0629 0% ⏮️ \u0627\u0644\u0623\u0648\u0644 ▶️ \u0627\u0644\u0633\u0627\u0628\u0642 \u0627\u0644\u062a\u0627\u0644\u064a ◀️ \u0627\u0644\u0623\u062e\u064a\u0631 ⏭️ ✨ \u0625\u0638\u0647\u0627\u0631 \u0627\u0644\u0646\u062a\u064a\u062c\u0629 ✨ 📊 \u0646\u062a\u064a\u062c\u062a\u0643 \u0627\u0644\u0646\u0647\u0627\u0626\u064a\u0629 0 \/ […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-17959","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/smartedujo.com\/ar\/wp-json\/wp\/v2\/pages\/17959","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/smartedujo.com\/ar\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/smartedujo.com\/ar\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/smartedujo.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/smartedujo.com\/ar\/wp-json\/wp\/v2\/comments?post=17959"}],"version-history":[{"count":1,"href":"https:\/\/smartedujo.com\/ar\/wp-json\/wp\/v2\/pages\/17959\/revisions"}],"predecessor-version":[{"id":17960,"href":"https:\/\/smartedujo.com\/ar\/wp-json\/wp\/v2\/pages\/17959\/revisions\/17960"}],"wp:attachment":[{"href":"https:\/\/smartedujo.com\/ar\/wp-json\/wp\/v2\/media?parent=17959"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

{"id":17959,"date":"2026-04-02T10:51:59","date_gmt":"2026-04-02T07:51:59","guid":{"rendered":"https:\/\/smartedujo.com\/?page_id=17959"},"modified":"2026-04-02T10:52:03","modified_gmt":"2026-04-02T07:52:03","slug":"%d8%a7%d9%84%d8%af%d8%b1%d8%b3-%d8%a7%d9%84%d8%ab%d8%a7%d9%86%d9%8a_%d8%a7%d9%84%d8%b1%d9%82%d9%85-%d8%a7%d9%84%d9%87%d9%8a%d8%af%d8%b1%d9%88%d8%ac%d9%8a%d9%86%d9%8a-%d9%88%d8%a7%d9%84%d8%b9%d9%88","status":"publish","type":"page","link":"https:\/\/smartedujo.com\/ar\/%d8%a7%d9%84%d8%af%d8%b1%d8%b3-%d8%a7%d9%84%d8%ab%d8%a7%d9%86%d9%8a_%d8%a7%d9%84%d8%b1%d9%82%d9%85-%d8%a7%d9%84%d9%87%d9%8a%d8%af%d8%b1%d9%88%d8%ac%d9%8a%d9%86%d9%8a-%d9%88%d8%a7%d9%84%d8%b9%d9%88\/","title":{"rendered":"\u0627\u0644\u062f\u0631\u0633 \u0627\u0644\u062b\u0627\u0646\u064a_\u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646\u064a \u0648\u0627\u0644\u0639\u0648\u0627\u0645\u0644_\u0627\u0644\u0645\u0624\u062b\u0631\u0629_quiz"},"content":{"rendered":"\n\n\n\n \n \n \u0627\u062e\u062a\u0628\u0627\u0631 \u062a\u0641\u0627\u0639\u0644\u064a: \u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646\u064a \u0648\u0627\u0644\u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u0645\u0624\u062b\u0631\u0629<\/title>\n <script src=\"https:\/\/cdn.tailwindcss.com\"><\/script>\n <link href=\"https:\/\/fonts.googleapis.com\/css2?family=Cairo:wght@300;400;500;600;700;800&display=swap\" rel=\"stylesheet\">\n <style>\n body {\n background: linear-gradient(135deg, #1e1a3a, #2d2a5e);\n font-family: 'Cairo', sans-serif;\n min-height: 100vh;\n padding: 1.5rem;\n }\n .glass-card {\n background: rgba(15, 23, 42, 0.65);\n backdrop-filter: blur(14px);\n border: 1px solid rgba(255,255,255,0.15);\n border-radius: 1.75rem;\n box-shadow: 0 20px 35px -12px rgba(0,0,0,0.4);\n }\n .option-btn {\n transition: all 0.2s ease;\n background: rgba(255,255,255,0.05);\n border: 1.5px solid transparent;\n border-radius: 1rem;\n padding: 0.9rem 1.2rem;\n margin-bottom: 0.7rem;\n cursor: pointer;\n display: flex;\n align-items: center;\n gap: 0.75rem;\n }\n .option-btn:hover:not(.disabled-opt) {\n background: rgba(139, 92, 246, 0.2);\n border-color: #a78bfa;\n }\n .option-radio {\n width: 1.2rem;\n height: 1.2rem;\n accent-color: #8b5cf6;\n margin-left: 0.5rem;\n cursor: pointer;\n }\n .option-text {\n flex: 1;\n font-weight: 500;\n }\n .correct-highlight {\n background: rgba(34, 197, 94, 0.25);\n border-color: #4ade80;\n }\n .incorrect-highlight {\n background: rgba(239, 68, 68, 0.25);\n border-color: #f87171;\n }\n .explanation-box {\n background: rgba(0, 0, 0, 0.35);\n border-right: 4px solid #818cf8;\n padding: 1rem;\n border-radius: 1rem;\n margin-top: 1.2rem;\n font-size: 1rem;\n line-height: 1.6;\n }\n .nav-btn {\n background: #2d2b55;\n transition: 0.2s;\n font-weight: 600;\n padding: 0.5rem 1rem;\n border-radius: 2rem;\n }\n .nav-btn:hover:not(:disabled) {\n background: #5b21b6;\n transform: scale(0.97);\n }\n .nav-btn:disabled {\n opacity: 0.4;\n cursor: not-allowed;\n }\n .progress-step {\n background: #2d2a5e;\n border-radius: 2rem;\n height: 8px;\n transition: width 0.2s ease;\n }\n .badge-difficulty {\n font-size: 0.7rem;\n background: rgba(0,0,0,0.4);\n padding: 0.2rem 0.7rem;\n border-radius: 2rem;\n }\n .result-panel {\n background: linear-gradient(95deg, #1e1b4b, #2e2a6e);\n border-radius: 1.5rem;\n padding: 1rem 1.5rem;\n margin-top: 1.5rem;\n text-align: center;\n }\n button:active {\n transform: scale(0.98);\n }\n @media (max-width: 640px) {\n body { padding: 1rem; }\n .option-btn { padding: 0.7rem 0.9rem; }\n .explanation-box { font-size: 0.95rem; }\n }\n .wide-container {\n max-width: 90rem;\n margin-left: auto;\n margin-right: auto;\n width: 100%;\n }\n <\/style>\n<\/head>\n<body>\n <div class=\"wide-container\">\n <div class=\"glass-card p-5 md:p-6 mb-6 text-center\">\n <h1 class=\"text-2xl md:text-3xl font-extrabold text-white tracking-tight\">🧪 \u0627\u062e\u062a\u0628\u0627\u0631: \u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646\u064a \u0648\u0627\u0644\u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u0645\u0624\u062b\u0631\u0629<\/h1>\n <p class=\"text-indigo-200 text-md mt-1\">\u0627\u0644\u062b\u0627\u0646\u0648\u064a – \u0627\u0644\u0635\u0641 \u0627\u0644\u062b\u0627\u0646\u064a \u0639\u0634\u0631 – \u0627\u0644\u0645\u0633\u0627\u0631 \u0627\u0644\u0623\u0643\u0627\u062f\u064a\u0645\u064a | \u0627\u0644\u062f\u0631\u0633 \u0627\u0644\u062b\u0627\u0646\u064a<\/p>\n <\/div>\n\n <div class=\"glass-card p-5 md:p-7\">\n <div class=\"flex flex-wrap justify-between items-center gap-3 mb-5 pb-2 border-b border-white\/20\">\n <div class=\"flex items-center gap-3\">\n <span class=\"bg-purple-700\/60 text-white text-l font-bold px-3 py-1 rounded-full\">📋 \u0627\u0644\u0633\u0624\u0627\u0644 <span id=\"current-q-num\">1<\/span> \/ <span id=\"total-q-count\">0<\/span><\/span>\n <span id=\"difficulty-badge\" class=\"badge-difficulty text-white\/80\"><\/span>\n <\/div>\n <div class=\"flex items-center gap-2 text-l bg-black\/20 px-3 py-1 rounded-full\">\n <span class=\"text-indigo-300\">\u2713 \u0627\u0644\u0645\u062c\u0627\u0628 \u0639\u0646\u0647:<\/span>\n <span id=\"answered-count\" class=\"font-bold text-white\">0<\/span>\n <span class=\"text-indigo-300\">\u0645\u0646<\/span>\n <span id=\"total-answered-base\" class=\"font-bold text-white\">0<\/span>\n <\/div>\n <\/div>\n \n <div class=\"mb-5\">\n <div class=\"flex justify-between text-xs text-indigo-200 mb-1\">\n <span>\u0627\u0644\u062a\u0642\u062f\u0645 \u0641\u064a \u0627\u0644\u0623\u0633\u0626\u0644\u0629<\/span>\n <span id=\"progress-percent\">0%<\/span>\n <\/div>\n <div class=\"w-full bg-gray-800\/60 rounded-full h-2.5\">\n <div id=\"progress-bar\" class=\"progress-step bg-gradient-to-r from-purple-500 to-indigo-500 h-2.5 rounded-full\" style=\"width: 0%\"><\/div>\n <\/div>\n <\/div>\n\n <div id=\"dynamic-question-area\"><\/div>\n\n <div class=\"flex flex-wrap justify-center gap-3 mt-8 pt-3 border-t border-white\/20\">\n <button id=\"first-btn\" class=\"nav-btn text-white px-4 py-2 text-l md:text-base\">⏮️ \u0627\u0644\u0623\u0648\u0644<\/button>\n <button id=\"prev-btn\" class=\"nav-btn text-white px-5 py-2\">▶️ \u0627\u0644\u0633\u0627\u0628\u0642<\/button>\n <button id=\"next-btn\" class=\"nav-btn text-white px-5 py-2\">\u0627\u0644\u062a\u0627\u0644\u064a ◀️<\/button>\n <button id=\"last-btn\" class=\"nav-btn text-white px-4 py-2 text-l md:text-base\">\u0627\u0644\u0623\u062e\u064a\u0631 ⏭️<\/button>\n <\/div>\n\n <div class=\"mt-6 text-center\">\n <button id=\"submit-final-btn\" class=\"bg-gradient-to-r from-purple-600 to-indigo-600 hover:from-purple-700 hover:to-indigo-700 text-white font-bold py-3 px-8 rounded-full shadow-lg transition text-lg\">✨ \u0625\u0638\u0647\u0627\u0631 \u0627\u0644\u0646\u062a\u064a\u062c\u0629 ✨<\/button>\n <\/div>\n\n <div id=\"result-panel\" class=\"result-panel hidden\">\n <h2 class=\"text-2xl font-bold text-white mb-2\">📊 \u0646\u062a\u064a\u062c\u062a\u0643 \u0627\u0644\u0646\u0647\u0627\u0626\u064a\u0629<\/h2>\n <p id=\"final-score-text\" class=\"text-4xl font-extrabold text-purple-300 mb-2\">0 \/ 0<\/p>\n <p id=\"result-message\" class=\"text-indigo-200 text-l\"><\/p>\n <button id=\"reset-exam-btn\" class=\"mt-4 bg-white\/20 hover:bg-white\/30 text-white px-6 py-2 rounded-full font-semibold transition\">🔄 \u0625\u0639\u0627\u062f\u0629 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631<\/button>\n <\/div>\n <\/div>\n <\/div>\n\n <script>\n const quizData = [{\"question\":\"\u0645\u0627\u0630\u0627 \u062a\u0639\u0646\u064a \u0638\u0627\u0647\u0631\u0629 \u0627\u0644\u062a\u0623\u064a\u0646 \u0627\u0644\u0630\u0627\u062a\u064a \u0644\u0644\u0645\u0627\u0621\u061f\",\"options\":[\"\u062a\u0641\u0627\u0639\u0644 \u0627\u0644\u0645\u0627\u0621 \u0645\u0639 \u062d\u0645\u0636 \u0642\u0648\u064a\",\"\u062a\u0641\u0627\u0639\u0644 \u0627\u0644\u0645\u0627\u0621 \u0645\u0639 \u0642\u0627\u0639\u062f\u0629 \u0642\u0648\u064a\u0629\",\"\u062a\u0641\u0627\u0639\u0644 \u062c\u0632\u064a\u0626\u064a\u0646 \u0645\u0646 \u0627\u0644\u0645\u0627\u0621 \u062d\u064a\u062b \u064a\u0633\u0644\u0643 \u0623\u062d\u062f\u0647\u0645\u0627 \u0633\u0644\u0648\u0643 \u0627\u0644\u062d\u0645\u0636 \u0648\u0627\u0644\u0622\u062e\u0631 \u0633\u0644\u0648\u0643 \u0627\u0644\u0642\u0627\u0639\u062f\u0629\",\"\u062a\u0641\u0643\u0643 \u0627\u0644\u0645\u0627\u0621 \u0625\u0644\u0649 \u0639\u0646\u0627\u0635\u0631\u0647 \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629\"],\"correctAnswer\":\"\u062a\u0641\u0627\u0639\u0644 \u062c\u0632\u064a\u0626\u064a\u0646 \u0645\u0646 \u0627\u0644\u0645\u0627\u0621 \u062d\u064a\u062b \u064a\u0633\u0644\u0643 \u0623\u062d\u062f\u0647\u0645\u0627 \u0633\u0644\u0648\u0643 \u0627\u0644\u062d\u0645\u0636 \u0648\u0627\u0644\u0622\u062e\u0631 \u0633\u0644\u0648\u0643 \u0627\u0644\u0642\u0627\u0639\u062f\u0629\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0627\u0644\u062a\u0623\u064a\u0646 \u0627\u0644\u0630\u0627\u062a\u064a \u0644\u0644\u0645\u0627\u0621 \u0647\u0648 \u062a\u0641\u0627\u0639\u0644 \u064a\u062d\u062f\u062b \u0628\u064a\u0646 \u062c\u0632\u064a\u0626\u064a \u0645\u0627\u0621\u060c \u062d\u064a\u062b \u064a\u0639\u0645\u0644 \u0623\u062d\u062f\u0647\u0645\u0627 \u0643\u062d\u0645\u0636 \u0645\u0627\u0646\u062d \u0644\u0644\u0628\u0631\u0648\u062a\u0648\u0646 \u0648\u0627\u0644\u0622\u062e\u0631 \u0643\u0642\u0627\u0639\u062f\u0629 \u0645\u0633\u062a\u0642\u0628\u0644\u0629 \u0644\u0644\u0628\u0631\u0648\u062a\u0648\u0646.\"},{\"question\":\"\u0627\u0643\u062a\u0628 \u0627\u0644\u0645\u0639\u0627\u062f\u0644\u0629 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629 \u0627\u0644\u062a\u064a \u062a\u0645\u062b\u0644 \u0627\u0644\u062a\u0623\u064a\u0646 \u0627\u0644\u0630\u0627\u062a\u064a \u0644\u0644\u0645\u0627\u0621.\",\"options\":[\"H\u2082O(l) \u2192 H\u207a(aq) + OH\u207b(aq)\",\"2H\u2082O(l) \u2192 H\u2082O\u207a(aq) + OH\u207b(aq)\",\"2H\u2082O(l) \u21cc H\u2083O\u207a(aq) + OH\u207b(aq)\",\"H\u2082O(l) + H\u2082O(l) \u2192 2H\u2082O(aq)\"],\"correctAnswer\":\"2H\u2082O(l) \u21cc H\u2083O\u207a(aq) + OH\u207b(aq)\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0627\u0644\u0645\u0639\u0627\u062f\u0644\u0629 \u0627\u0644\u0635\u062d\u064a\u062d\u0629 \u0644\u0644\u062a\u0623\u064a\u0646 \u0627\u0644\u0630\u0627\u062a\u064a \u0644\u0644\u0645\u0627\u0621 \u0647\u064a 2H\u2082O(l) \u21cc H\u2083O\u207a(aq) + OH\u207b(aq)\u060c \u062d\u064a\u062b \u062a\u0646\u062a\u062c \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0646\u064a\u0648\u0645 \u0648\u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f.\"},{\"question\":\"\u0639\u0646\u062f \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 25\u00b0C\u060c \u0645\u0627 \u0647\u0648 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0646\u064a\u0648\u0645 [H\u2083O\u207a] \u0648\u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f [OH\u207b] \u0641\u064a \u0627\u0644\u0645\u0627\u0621 \u0627\u0644\u0646\u0642\u064a\u061f\",\"options\":[\"[H\u2083O\u207a] = [OH\u207b] = 1 \u00d7 10\u207b\u00b9\u2074 M\",\"[H\u2083O\u207a] = [OH\u207b] = 1 \u00d7 10\u207b\u2077 M\",\"[H\u2083O\u207a] = 1 M, [OH\u207b] = 1 \u00d7 10\u207b\u00b9\u2074 M\",\"[H\u2083O\u207a] = 1 \u00d7 10\u207b\u00b9\u2074 M, [OH\u207b] = 1 M\"],\"correctAnswer\":\"[H\u2083O\u207a] = [OH\u207b] = 1 \u00d7 10\u207b\u2077 M\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0641\u064a \u0627\u0644\u0645\u0627\u0621 \u0627\u0644\u0646\u0642\u064a \u0639\u0646\u062f 25\u00b0C\u060c \u062a\u0643\u0648\u0646 \u062a\u0631\u0627\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0646\u064a\u0648\u0645 \u0648\u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f \u0645\u062a\u0633\u0627\u0648\u064a\u0629 \u0648\u0642\u064a\u0645\u062a\u0647\u0627 1 \u00d7 10\u207b\u2077 \u0645\u0648\u0644\u0627\u0631.\"},{\"question\":\"\u0645\u0627 \u0647\u0648 \u062b\u0627\u0628\u062a \u062a\u0623\u064a\u0651\u064f\u0646 \u0627\u0644\u0645\u0627\u0621 (Kw) \u0639\u0646\u062f \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 25\u00b0C\u061f\",\"options\":[\"1.0 \u00d7 10\u207b\u2077\",\"1.0 \u00d7 10\u207b\u00b9\u2070\",\"1.0 \u00d7 10\u207b\u00b9\u2074\",\"1.0 \u00d7 10\u2070\"],\"correctAnswer\":\"1.0 \u00d7 10\u207b\u00b9\u2074\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u062b\u0627\u0628\u062a \u062a\u0623\u064a\u0651\u064f\u0646 \u0627\u0644\u0645\u0627\u0621 (Kw) \u0647\u0648 \u062d\u0627\u0635\u0644 \u0636\u0631\u0628 \u062a\u0631\u0643\u064a\u0632\u064a \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0646\u064a\u0648\u0645 \u0648\u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f\u060c \u0648\u0642\u064a\u0645\u062a\u0647 1.0 \u00d7 10\u207b\u00b9\u2074 \u0639\u0646\u062f 25\u00b0C.\"},{\"question\":\"\u0625\u0630\u0627 \u0643\u0627\u0646 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0646\u064a\u0648\u0645 [H\u2083O\u207a] \u0641\u064a \u0645\u062d\u0644\u0648\u0644 \u0645\u0627 \u064a\u0633\u0627\u0648\u064a 1 \u00d7 10\u207b\u2075 M \u0639\u0646\u062f 25\u00b0C\u060c \u0641\u0645\u0627 \u0647\u0648 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f [OH\u207b]\u061f\",\"options\":[\"1 \u00d7 10\u207b\u2075 M\",\"1 \u00d7 10\u207b\u2079 M\",\"1 \u00d7 10\u207b\u00b9\u2074 M\",\"1 \u00d7 10\u207b\u2077 M\"],\"correctAnswer\":\"1 \u00d7 10\u207b\u2079 M\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0639\u0644\u0627\u0642\u0629 Kw = [H\u2083O\u207a][OH\u207b]\u060c \u064a\u0645\u0643\u0646 \u062d\u0633\u0627\u0628 [OH\u207b] = Kw \/ [H\u2083O\u207a] = (1 \u00d7 10\u207b\u00b9\u2074) \/ (1 \u00d7 10\u207b\u2075) = 1 \u00d7 10\u207b\u2079 M.\"},{\"question\":\"\u0625\u0630\u0627 \u0643\u0627\u0646 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f [OH\u207b] \u0641\u064a \u0645\u062d\u0644\u0648\u0644 \u0645\u0627 \u064a\u0633\u0627\u0648\u064a 1 \u00d7 10\u207b\u00b2 M \u0639\u0646\u062f 25\u00b0C\u060c \u0641\u0645\u0627 \u0647\u0648 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0646\u064a\u0648\u0645 [H\u2083O\u207a]\u061f\",\"options\":[\"1 \u00d7 10\u207b\u00b2 M\",\"1 \u00d7 10\u207b\u00b9\u00b2 M\",\"1 \u00d7 10\u207b\u2077 M\",\"1 \u00d7 10\u207b\u00b9\u2074 M\"],\"correctAnswer\":\"1 \u00d7 10\u207b\u00b9\u00b2 M\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0639\u0644\u0627\u0642\u0629 Kw = [H\u2083O\u207a][OH\u207b]\u060c \u064a\u0645\u0643\u0646 \u062d\u0633\u0627\u0628 [H\u2083O\u207a] = Kw \/ [OH\u207b] = (1 \u00d7 10\u207b\u00b9\u2074) \/ (1 \u00d7 10\u207b\u00b2) = 1 \u00d7 10\u207b\u00b9\u00b2 M.\"},{\"question\":\"\u0623\u064a \u0645\u0646 \u0627\u0644\u0639\u0644\u0627\u0642\u0627\u062a \u0627\u0644\u062a\u0627\u0644\u064a\u0629 \u062a\u0635\u0641 \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u062d\u0645\u0636\u064a \u0639\u0646\u062f 25\u00b0C\u061f\",\"options\":[\"[H\u2083O\u207a] = [OH\u207b]\",\"[H\u2083O\u207a] < [OH\u207b]\",\"[H\u2083O\u207a] > [OH\u207b]\",\"[H\u2083O\u207a] \u00d7 [OH\u207b] = 1 \u00d7 10\u207b\u00b9\u2074\"],\"correctAnswer\":\"[H\u2083O\u207a] > [OH\u207b]\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u062d\u0645\u0636\u064a \u064a\u062a\u0645\u064a\u0632 \u0628\u0623\u0646 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0646\u064a\u0648\u0645 \u0641\u064a\u0647 \u064a\u0643\u0648\u0646 \u0623\u0643\u0628\u0631 \u0645\u0646 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f.\"},{\"question\":\"\u0645\u0627 \u0627\u0644\u0630\u064a \u064a\u0645\u064a\u0632 \u0627\u0644\u062d\u0645\u0648\u0636 \u0648\u0627\u0644\u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0642\u0648\u064a\u0629\u061f\",\"options\":[\"\u062a\u062a\u0623\u064a\u0646 \u0628\u0634\u0643\u0644 \u062c\u0632\u0626\u064a \u0641\u064a \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0645\u0627\u0626\u064a\",\"\u0644\u0627 \u062a\u062a\u0641\u0627\u0639\u0644 \u0645\u0639 \u0627\u0644\u0645\u0627\u0621\",\"\u062a\u062a\u0623\u064a\u0646 \u0628\u0634\u0643\u0644 \u0643\u0627\u0645\u0644 (100%) \u0641\u064a \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0645\u0627\u0626\u064a\",\"\u062a\u0643\u0648\u0646 \u062a\u0631\u0627\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a\u0647\u0627 \u0645\u062a\u0633\u0627\u0648\u064a\u0629 \u062f\u0627\u0626\u0645\u0627\u064b\"],\"correctAnswer\":\"\u062a\u062a\u0623\u064a\u0646 \u0628\u0634\u0643\u0644 \u0643\u0627\u0645\u0644 (100%) \u0641\u064a \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0645\u0627\u0626\u064a\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0627\u0644\u062d\u0645\u0648\u0636 \u0648\u0627\u0644\u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0642\u0648\u064a\u0629 \u0647\u064a \u0627\u0644\u062a\u064a \u062a\u062a\u0641\u0643\u0643 \u0623\u0648 \u062a\u062a\u0623\u064a\u0646 \u0643\u0644\u064a\u0627\u064b \u0641\u064a \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0645\u0627\u0626\u064a.\"},{\"question\":\"\u0623\u064a \u0645\u0646 \u0627\u0644\u0645\u0648\u0627\u062f \u0627\u0644\u062a\u0627\u0644\u064a\u0629 \u062a\u064f\u0639\u062a\u0628\u0631 \u062d\u0645\u0636\u0627\u064b \u0642\u0648\u064a\u0627\u064b\u061f\",\"options\":[\"CH\u2083COOH (\u062d\u0645\u0636 \u0627\u0644\u062e\u0644\u064a\u0643)\",\"H\u2082CO\u2083 (\u062d\u0645\u0636 \u0627\u0644\u0643\u0631\u0628\u0648\u0646\u064a\u0643)\",\"HNO\u2083 (\u062d\u0645\u0636 \u0627\u0644\u0646\u064a\u062a\u0631\u064a\u0643)\",\"H\u2083PO\u2084 (\u062d\u0645\u0636 \u0627\u0644\u0641\u0648\u0633\u0641\u0648\u0631\u064a\u0643)\"],\"correctAnswer\":\"HNO\u2083 (\u062d\u0645\u0636 \u0627\u0644\u0646\u064a\u062a\u0631\u064a\u0643)\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u062d\u0645\u0636 \u0627\u0644\u0646\u064a\u062a\u0631\u064a\u0643 (HNO\u2083) \u0647\u0648 \u0623\u062d\u062f \u0627\u0644\u0623\u0645\u062b\u0644\u0629 \u0639\u0644\u0649 \u0627\u0644\u062d\u0645\u0648\u0636 \u0627\u0644\u0642\u0648\u064a\u0629 \u0627\u0644\u062a\u064a \u062a\u062a\u0623\u064a\u0646 \u0643\u0644\u064a\u0627\u064b \u0641\u064a \u0627\u0644\u0645\u0627\u0621.\"},{\"question\":\"\u0623\u064a \u0645\u0646 \u0627\u0644\u0645\u0648\u0627\u062f \u0627\u0644\u062a\u0627\u0644\u064a\u0629 \u062a\u064f\u0639\u062a\u0628\u0631 \u0642\u0627\u0639\u062f\u0629 \u0642\u0648\u064a\u0629\u061f\",\"options\":[\"NH\u2083 (\u0627\u0644\u0623\u0645\u0648\u0646\u064a\u0627)\",\"Mg(OH)\u2082 (\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f \u0627\u0644\u0645\u063a\u0646\u064a\u0633\u064a\u0648\u0645)\",\"NaOH (\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f \u0627\u0644\u0635\u0648\u062f\u064a\u0648\u0645)\",\"CaCO\u2083 (\u0643\u0631\u0628\u0648\u0646\u0627\u062a \u0627\u0644\u0643\u0627\u0644\u0633\u064a\u0648\u0645)\"],\"correctAnswer\":\"NaOH (\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f \u0627\u0644\u0635\u0648\u062f\u064a\u0648\u0645)\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f \u0627\u0644\u0635\u0648\u062f\u064a\u0648\u0645 (NaOH) \u0647\u0648 \u0623\u062d\u062f \u0627\u0644\u0623\u0645\u062b\u0644\u0629 \u0639\u0644\u0649 \u0627\u0644\u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0642\u0648\u064a\u0629 \u0627\u0644\u062a\u064a \u062a\u062a\u0641\u0643\u0643 \u0643\u0644\u064a\u0627\u064b \u0641\u064a \u0627\u0644\u0645\u0627\u0621.\"},{\"question\":\"\u0645\u0627 \u0647\u0648 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a H\u2083O\u207a \u0641\u064a \u0645\u062d\u0644\u0648\u0644 \u062d\u0645\u0636 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0643\u0644\u0648\u0631\u064a\u0643 (HCl) \u062a\u0631\u0643\u064a\u0632\u0647 0.01 M\u061f\",\"options\":[\"0.01 M\",\"1.0 M\",\"1 \u00d7 10\u207b\u00b9\u2074 M\",\"1 \u00d7 10\u207b\u2077 M\"],\"correctAnswer\":\"0.01 M\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0628\u0645\u0627 \u0623\u0646 HCl \u062d\u0645\u0636 \u0642\u0648\u064a\u060c \u0641\u0625\u0646\u0647 \u064a\u062a\u0623\u064a\u0646 \u0643\u0644\u064a\u0627\u064b\u060c \u0648\u0628\u0627\u0644\u062a\u0627\u0644\u064a [H\u2083O\u207a] = [HCl] = 0.01 M.\"},{\"question\":\"\u0627\u062d\u0633\u0628 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a OH\u207b \u0641\u064a \u0645\u062d\u0644\u0648\u0644 \u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f \u0627\u0644\u0628\u0648\u062a\u0627\u0633\u064a\u0648\u0645 (KOH) \u062a\u0631\u0643\u064a\u0632\u0647 0.005 M.\",\"options\":[\"0.005 M\",\"0.01 M\",\"1 \u00d7 10\u207b\u00b9\u2074 M\",\"1 \u00d7 10\u207b\u2077 M\"],\"correctAnswer\":\"0.005 M\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0628\u0645\u0627 \u0623\u0646 KOH \u0642\u0627\u0639\u062f\u0629 \u0642\u0648\u064a\u0629\u060c \u0641\u0625\u0646\u0647\u0627 \u062a\u062a\u0641\u0643\u0643 \u0643\u0644\u064a\u0627\u064b \u0648\u062a\u0646\u062a\u062c \u0623\u064a\u0648\u0646 OH\u207b \u0648\u0627\u062d\u062f \u0644\u0643\u0644 \u0648\u062d\u062f\u0629\u060c \u0648\u0628\u0627\u0644\u062a\u0627\u0644\u064a [OH\u207b] = [KOH] = 0.005 M.\"},{\"question\":\"\u0627\u062d\u0633\u0628 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a OH\u207b \u0641\u064a \u0645\u062d\u0644\u0648\u0644 \u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f \u0627\u0644\u0643\u0627\u0644\u0633\u064a\u0648\u0645 (Ca(OH)\u2082) \u062a\u0631\u0643\u064a\u0632\u0647 0.02 M.\",\"options\":[\"0.02 M\",\"0.04 M\",\"0.01 M\",\"1 \u00d7 10\u207b\u00b9\u2074 M\"],\"correctAnswer\":\"0.04 M\",\"difficulty\":\"\u0635\u0639\u0628\",\"explanation\":\"\u0628\u0645\u0627 \u0623\u0646 Ca(OH)\u2082 \u0642\u0627\u0639\u062f\u0629 \u0642\u0648\u064a\u0629 \u0648\u062a\u0646\u062a\u062c \u0623\u064a\u0648\u0646\u064a\u0646 OH\u207b \u0644\u0643\u0644 \u0648\u062d\u062f\u0629\u060c \u0641\u0625\u0646 [OH\u207b] = [Ca(OH)\u2082] \u00d7 2 = 0.02 M \u00d7 2 = 0.04 M.\"},{\"question\":\"\u0645\u0627 \u0647\u064a \u0627\u0644\u0639\u0644\u0627\u0642\u0629 \u0627\u0644\u0631\u064a\u0627\u0636\u064a\u0629 \u0627\u0644\u062a\u064a \u062a\u0631\u0628\u0637 \u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646\u064a (pH) \u0628\u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0646\u064a\u0648\u0645 [H\u2083O\u207a]\u061f\",\"options\":[\"pH = log[H\u2083O\u207a]\",\"pH = -log[H\u2083O\u207a]\",\"[H\u2083O\u207a] = 10\u207bpH\",\"pH = 14 - pOH\"],\"correctAnswer\":\"pH = -log[H\u2083O\u207a]\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646\u064a (pH) \u064a\u064f\u0639\u0631\u0641 \u0639\u0644\u0649 \u0623\u0646\u0647 \u0627\u0644\u0644\u0648\u063a\u0627\u0631\u064a\u062a\u0645 \u0627\u0644\u0633\u0627\u0644\u0628 \u0644\u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0646\u064a\u0648\u0645.\"},{\"question\":\"\u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u0642\u064a\u0645\u0629 pH \u0644\u0645\u062d\u0644\u0648\u0644 \u062a\u0633\u0627\u0648\u064a 2\u060c \u0641\u0645\u0627 \u0647\u0648 \u062a\u0631\u0643\u064a\u0632 \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0646\u064a\u0648\u0645 [H\u2083O\u207a]\u061f\",\"options\":[\"1 \u00d7 10\u207b\u00b2 M\",\"1 \u00d7 10\u00b2 M\",\"1 \u00d7 10\u207b\u00b9\u00b2 M\",\"1 \u00d7 10\u2077 M\"],\"correctAnswer\":\"1 \u00d7 10\u207b\u00b2 M\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0644\u062d\u0633\u0627\u0628 [H\u2083O\u207a] \u0645\u0646 pH\u060c \u0646\u0633\u062a\u062e\u062f\u0645 \u0627\u0644\u0639\u0644\u0627\u0642\u0629 [H\u2083O\u207a] = 10\u207bpH. \u0625\u0630\u0646\u060c [H\u2083O\u207a] = 10\u207b\u00b2 M.\"},{\"question\":\"\u0645\u0627 \u0647\u064a \u0627\u0644\u0639\u0644\u0627\u0642\u0629 \u0628\u064a\u0646 \u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646\u064a (pH) \u0648\u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f\u064a (pOH) \u0639\u0646\u062f 25\u00b0C\u061f\",\"options\":[\"pH + pOH = 7\",\"pH - pOH = 14\",\"pH \u00d7 pOH = 14\",\"pH + pOH = 14\"],\"correctAnswer\":\"pH + pOH = 14\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0645\u062c\u0645\u0648\u0639 \u0642\u064a\u0645\u062a\u064a pH \u0648 pOH \u064a\u0633\u0627\u0648\u064a \u062f\u0627\u0626\u0645\u0627\u064b 14 \u0639\u0646\u062f \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 25\u00b0C.\"},{\"question\":\"\u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u0642\u064a\u0645\u0629 pOH \u0644\u0645\u062d\u0644\u0648\u0644 \u0647\u064a 3\u060c \u0641\u0645\u0627 \u0647\u064a \u0642\u064a\u0645\u0629 pH \u0644\u0644\u0645\u062d\u0644\u0648\u0644\u061f\",\"options\":[\"3\",\"11\",\"7\",\"14\"],\"correctAnswer\":\"11\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0639\u0644\u0627\u0642\u0629 pH + pOH = 14\u060c \u0641\u0625\u0646 pH = 14 - pOH = 14 - 3 = 11.\"},{\"question\":\"\u0645\u062d\u0644\u0648\u0644 \u0644\u0647 pH = 9. \u0645\u0627 \u0647\u0648 \u062a\u0635\u0646\u064a\u0641 \u0647\u0630\u0627 \u0627\u0644\u0645\u062d\u0644\u0648\u0644\u061f\",\"options\":[\"\u062d\u0645\u0636\u064a\",\"\u0645\u062a\u0639\u0627\u062f\u0644\",\"\u0642\u0627\u0639\u062f\u064a\",\"\u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u0643\u0648\u0646 \u062d\u0645\u0636\u064a\u0627\u064b \u0623\u0648 \u0642\u0627\u0639\u062f\u064a\u0627\u064b\"],\"correctAnswer\":\"\u0642\u0627\u0639\u062f\u064a\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0630\u064a \u062a\u0643\u0648\u0646 \u0642\u064a\u0645\u0629 pH \u0644\u0647 \u0623\u0643\u0628\u0631 \u0645\u0646 7 \u064a\u064f\u0635\u0646\u0641 \u0639\u0644\u0649 \u0623\u0646\u0647 \u0642\u0627\u0639\u062f\u064a.\"},{\"question\":\"\u0643\u0644\u0645\u0627 \u0642\u0644\u062a \u0642\u064a\u0645\u0629 \u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646\u064a (pH) \u0644\u0644\u0645\u062d\u0644\u0648\u0644\u060c \u0645\u0627\u0630\u0627 \u064a\u062d\u062f\u062b \u0644\u062d\u0645\u0648\u0636\u062a\u0647\u061f\",\"options\":[\"\u062a\u0632\u062f\u0627\u062f \u062d\u0645\u0648\u0636\u062a\u0647\",\"\u062a\u0642\u0644 \u062d\u0645\u0648\u0636\u062a\u0647\",\"\u062a\u0628\u0642\u0649 \u062d\u0645\u0648\u0636\u062a\u0647 \u062b\u0627\u0628\u062a\u0629\",\"\u064a\u0635\u0628\u062d \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0645\u062a\u0639\u0627\u062f\u0644\u0627\u064b\"],\"correctAnswer\":\"\u062a\u0632\u062f\u0627\u062f \u062d\u0645\u0648\u0636\u062a\u0647\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0645\u0642\u064a\u0627\u0633 pH \u0645\u0642\u064a\u0627\u0633 \u0644\u0648\u063a\u0627\u0631\u064a\u062a\u0645\u064a \u0639\u0643\u0633\u064a \u0644\u0644\u062d\u0645\u0648\u0636\u0629\u061b \u0643\u0644\u0645\u0627 \u0627\u0646\u062e\u0641\u0636\u062a \u0642\u064a\u0645\u0629 pH\u060c \u0632\u0627\u062f\u062a \u062d\u0645\u0648\u0636\u0629 \u0627\u0644\u0645\u062d\u0644\u0648\u0644.\"},{\"question\":\"\u0627\u062d\u0633\u0628 \u0642\u064a\u0645\u0629 pH \u0644\u0645\u062d\u0644\u0648\u0644 \u0645\u0646 \u062d\u0645\u0636 \u0627\u0644\u0646\u064a\u062a\u0631\u064a\u0643 (HNO\u2083) \u062a\u0631\u0643\u064a\u0632\u0647 1 \u00d7 10\u207b\u00b3 M.\",\"options\":[\"3\",\"11\",\"7\",\"1\"],\"correctAnswer\":\"3\",\"difficulty\":\"\u0635\u0639\u0628\",\"explanation\":\"\u0628\u0645\u0627 \u0623\u0646 HNO\u2083 \u062d\u0645\u0636 \u0642\u0648\u064a\u060c \u0641\u0625\u0646 [H\u2083O\u207a] = [HNO\u2083] = 1 \u00d7 10\u207b\u00b3 M. \u0625\u0630\u0646\u060c pH = -log(1 \u00d7 10\u207b\u00b3) = 3.\"},{\"question\":\"\u0627\u062d\u0633\u0628 \u0642\u064a\u0645\u0629 pH \u0644\u0645\u062d\u0644\u0648\u0644 \u0645\u0646 \u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f \u0627\u0644\u0635\u0648\u062f\u064a\u0648\u0645 (NaOH) \u062a\u0631\u0643\u064a\u0632\u0647 1 \u00d7 10\u207b\u00b2 M.\",\"options\":[\"2\",\"12\",\"7\",\"1\"],\"correctAnswer\":\"12\",\"difficulty\":\"\u0635\u0639\u0628\",\"explanation\":\"\u0628\u0645\u0627 \u0623\u0646 NaOH \u0642\u0627\u0639\u062f\u0629 \u0642\u0648\u064a\u0629\u060c \u0641\u0625\u0646 [OH\u207b] = [NaOH] = 1 \u00d7 10\u207b\u00b2 M. \u0625\u0630\u0646\u060c pOH = -log(1 \u00d7 10\u207b\u00b2) = 2. \u0648\u0645\u0646\u0647\u0627\u060c pH = 14 - pOH = 14 - 2 = 12.\"},{\"question\":\"\u0645\u0627 \u0647\u0648 \u0627\u0644\u0627\u0633\u0645 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a \u0644\u0640 HClO\u2084 \u0648\u0647\u0648 \u0645\u0646 \u0627\u0644\u062d\u0645\u0648\u0636 \u0627\u0644\u0642\u0648\u064a\u0629\u061f\",\"options\":[\"\u062d\u0645\u0636 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0643\u0644\u0648\u0631\u064a\u0643\",\"\u062d\u0645\u0636 \u0627\u0644\u0643\u0628\u0631\u064a\u062a\u064a\u0643\",\"\u062d\u0645\u0636 \u0627\u0644\u0628\u064a\u0631\u0643\u0644\u0648\u0631\u064a\u0643\",\"\u062d\u0645\u0636 \u0627\u0644\u0646\u064a\u062a\u0631\u064a\u0643\"],\"correctAnswer\":\"\u062d\u0645\u0636 \u0627\u0644\u0628\u064a\u0631\u0643\u0644\u0648\u0631\u064a\u0643\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"HClO\u2084 \u0647\u0648 \u062d\u0645\u0636 \u0627\u0644\u0628\u064a\u0631\u0643\u0644\u0648\u0631\u064a\u0643\u060c \u0648\u0647\u0648 \u0645\u0646 \u0627\u0644\u062d\u0645\u0648\u0636 \u0627\u0644\u0642\u0648\u064a\u0629 \u0627\u0644\u062a\u064a \u064a\u062c\u0628 \u062d\u0641\u0638\u0647\u0627.\"},{\"question\":\"\u0623\u064a \u0645\u0646 \u0627\u0644\u0639\u0628\u0627\u0631\u0627\u062a \u0627\u0644\u062a\u0627\u0644\u064a\u0629 \u062a\u0635\u0641 \u0639\u0645\u0644\u064a\u0629 \u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629\u061f\",\"options\":[\"\u0639\u0645\u0644\u064a\u0629 \u062a\u062d\u062f\u064a\u062f \u0643\u062a\u0644\u0629 \u0645\u062d\u0644\u0648\u0644 \u0645\u062c\u0647\u0648\u0644\",\"\u062a\u0642\u0646\u064a\u0629 \u0645\u062e\u0628\u0631\u064a\u0629 \u0644\u062a\u062d\u062f\u064a\u062f \u062a\u0631\u0643\u064a\u0632 \u0645\u062d\u0644\u0648\u0644 \u0645\u062c\u0647\u0648\u0644 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u062d\u0644\u0648\u0644 \u0645\u0639\u0644\u0648\u0645 \u0627\u0644\u062a\u0631\u0643\u064a\u0632 \u0628\u062f\u0642\u0629\",\"\u0639\u0645\u0644\u064a\u0629 \u062e\u0644\u0637 \u062d\u0645\u0636 \u0648\u0642\u0627\u0639\u062f\u0629 \u0639\u0634\u0648\u0627\u0626\u064a\u0627\u064b\",\"\u062a\u0642\u0646\u064a\u0629 \u0644\u0632\u064a\u0627\u062f\u0629 \u0633\u0631\u0639\u0629 \u0627\u0644\u062a\u0641\u0627\u0639\u0644 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\"],\"correctAnswer\":\"\u062a\u0642\u0646\u064a\u0629 \u0645\u062e\u0628\u0631\u064a\u0629 \u0644\u062a\u062d\u062f\u064a\u062f \u062a\u0631\u0643\u064a\u0632 \u0645\u062d\u0644\u0648\u0644 \u0645\u062c\u0647\u0648\u0644 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u062d\u0644\u0648\u0644 \u0645\u0639\u0644\u0648\u0645 \u0627\u0644\u062a\u0631\u0643\u064a\u0632 \u0628\u062f\u0642\u0629\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629 \u0647\u064a \u062a\u0642\u0646\u064a\u0629 \u062a\u0633\u062a\u062e\u062f\u0645 \u0644\u062a\u062d\u062f\u064a\u062f \u062a\u0631\u0643\u064a\u0632 \u0645\u062c\u0647\u0648\u0644 \u0644\u0645\u062d\u0644\u0648\u0644 \u0645\u0646 \u062e\u0644\u0627\u0644 \u062a\u0641\u0627\u0639\u0644\u0647 \u0645\u0639 \u0645\u062d\u0644\u0648\u0644 \u0642\u064a\u0627\u0633\u064a (\u0645\u0639\u0644\u0648\u0645 \u0627\u0644\u062a\u0631\u0643\u064a\u0632).\"},{\"question\":\"\u0645\u0627\u0630\u0627 \u062a\u0639\u0646\u064a \u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u0643\u0627\u0641\u0624 \u0641\u064a \u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629\u061f\",\"options\":[\"\u0627\u0644\u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u064a \u064a\u062a\u063a\u064a\u0631 \u0639\u0646\u062f\u0647\u0627 \u0644\u0648\u0646 \u0627\u0644\u0643\u0627\u0634\u0641\",\"\u0627\u0644\u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u064a \u062a\u0643\u0648\u0646 \u0641\u064a\u0647\u0627 \u0643\u0645\u064a\u0629 \u0627\u0644\u062d\u0645\u0636 \u0627\u0644\u0645\u0636\u0627\u0641 \u0623\u0643\u0628\u0631 \u0645\u0646 \u0643\u0645\u064a\u0629 \u0627\u0644\u0642\u0627\u0639\u062f\u0629\",\"\u0627\u0644\u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u064a \u062a\u0643\u0648\u0646 \u0641\u064a\u0647\u0627 \u0643\u0645\u064a\u0629 \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0642\u064a\u0627\u0633\u064a \u0627\u0644\u0645\u0636\u0627\u0641\u0629 \u0645\u0633\u0627\u0648\u064a\u0629 \u062a\u0645\u0627\u0645\u0627\u064b \u0644\u0643\u0645\u064a\u0629 \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0645\u062c\u0647\u0648\u0644 \u0627\u0644\u0644\u0627\u0632\u0645\u0629 \u0644\u0644\u062a\u0641\u0627\u0639\u0644 \u0628\u0634\u0643\u0644 \u0643\u0627\u0645\u0644\",\"\u0627\u0644\u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u064a \u064a\u0643\u0648\u0646 \u0639\u0646\u062f\u0647\u0627 pH = 7 \u062f\u0627\u0626\u0645\u0627\u064b\"],\"correctAnswer\":\"\u0627\u0644\u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u064a \u062a\u0643\u0648\u0646 \u0641\u064a\u0647\u0627 \u0643\u0645\u064a\u0629 \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0642\u064a\u0627\u0633\u064a \u0627\u0644\u0645\u0636\u0627\u0641\u0629 \u0645\u0633\u0627\u0648\u064a\u0629 \u062a\u0645\u0627\u0645\u0627\u064b \u0644\u0643\u0645\u064a\u0629 \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0645\u062c\u0647\u0648\u0644 \u0627\u0644\u0644\u0627\u0632\u0645\u0629 \u0644\u0644\u062a\u0641\u0627\u0639\u0644 \u0628\u0634\u0643\u0644 \u0643\u0627\u0645\u0644\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u0643\u0627\u0641\u0624 \u0647\u064a \u0627\u0644\u0646\u0642\u0637\u0629 \u0627\u0644\u0646\u0638\u0631\u064a\u0629 \u0627\u0644\u062a\u064a \u062a\u062a\u0633\u0627\u0648\u0649 \u0641\u064a\u0647\u0627 \u0639\u062f\u062f \u0645\u0648\u0644\u0627\u062a \u0627\u0644\u062d\u0645\u0636 \u0648\u0627\u0644\u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0645\u062a\u0641\u0627\u0639\u0644\u0629.\"},{\"question\":\"\u0639\u0646\u062f \u0645\u0639\u0627\u064a\u0631\u0629 \u062d\u0645\u0636 \u0642\u0648\u064a \u0645\u0639 \u0642\u0627\u0639\u062f\u0629 \u0642\u0648\u064a\u0629\u060c \u0643\u0645 \u062a\u0643\u0648\u0646 \u0642\u064a\u0645\u0629 pH \u0639\u0646\u062f \u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u0643\u0627\u0641\u0624\u061f\",\"options\":[\"\u0623\u0642\u0644 \u0645\u0646 7\",\"\u0623\u0643\u0628\u0631 \u0645\u0646 7\",\"\u062a\u0633\u0627\u0648\u064a 7\",\"\u0644\u0627 \u064a\u0645\u0643\u0646 \u062a\u062d\u062f\u064a\u062f\u0647\u0627\"],\"correctAnswer\":\"\u062a\u0633\u0627\u0648\u064a 7\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0641\u064a \u0645\u0639\u0627\u064a\u0631\u0629 \u062d\u0645\u0636 \u0642\u0648\u064a \u0648\u0642\u0627\u0639\u062f\u0629 \u0642\u0648\u064a\u0629\u060c \u064a\u0646\u062a\u062c \u0645\u0644\u062d \u0645\u062a\u0639\u0627\u062f\u0644 \u0648\u0645\u0627\u0621\u060c \u0648\u0628\u0627\u0644\u062a\u0627\u0644\u064a \u062a\u0643\u0648\u0646 \u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u0643\u0627\u0641\u0624 \u0639\u0646\u062f pH = 7.\"},{\"question\":\"\u0645\u0627 \u0647\u064a \u0627\u0644\u0645\u0639\u0627\u062f\u0644\u0629 \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629 \u0627\u0644\u0645\u0633\u062a\u062e\u062f\u0645\u0629 \u0641\u064a \u062d\u0633\u0627\u0628\u0627\u062a \u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629 \u0644\u062a\u0641\u0627\u0639\u0644 \u062d\u0645\u0636-\u0642\u0627\u0639\u062f\u0629 \u0628\u0646\u0633\u0628\u0629 1:1\u061f\",\"options\":[\"M\u2081V\u2081 = M\u2082V\u2082\",\"M\u2081 + V\u2081 = M\u2082 + V\u2082\",\"M\u2081 \/ V\u2081 = M\u2082 \/ V\u2082\",\"M\u2081 \u00d7 V\u2082 = M\u2082 \u00d7 V\u2081\"],\"correctAnswer\":\"M\u2081V\u2081 = M\u2082V\u2082\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0641\u064a \u062a\u0641\u0627\u0639\u0644\u0627\u062a \u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629 \u0628\u0646\u0633\u0628\u0629 1:1\u060c \u064a\u0643\u0648\u0646 \u0639\u062f\u062f \u0645\u0648\u0644\u0627\u062a \u0627\u0644\u062d\u0645\u0636 \u0645\u0633\u0627\u0648\u064a\u0627\u064b \u0644\u0639\u062f\u062f \u0645\u0648\u0644\u0627\u062a \u0627\u0644\u0642\u0627\u0639\u062f\u0629\u060c \u0645\u0645\u0627 \u064a\u0624\u062f\u064a \u0625\u0644\u0649 \u0627\u0644\u0639\u0644\u0627\u0642\u0629 M\u2081V\u2081 = M\u2082V\u2082.\"},{\"question\":\"\u0644\u0632\u0645 25.0 mL \u0645\u0646 \u0645\u062d\u0644\u0648\u0644 NaOH \u062a\u0631\u0643\u064a\u0632\u0647 0.10 M \u0644\u0645\u0639\u0627\u064a\u0631\u0629 20.0 mL \u0645\u0646 \u0645\u062d\u0644\u0648\u0644 HCl. \u0645\u0627 \u0647\u0648 \u062a\u0631\u0643\u064a\u0632 \u0645\u062d\u0644\u0648\u0644 HCl\u061f\",\"options\":[\"0.10 M\",\"0.125 M\",\"0.08 M\",\"0.20 M\"],\"correctAnswer\":\"0.125 M\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 (M \u00d7 V)<sub>\u062d\u0645\u0636<\/sub> = (M \u00d7 V)<sub>\u0642\u0627\u0639\u062f\u0629<\/sub>: M<sub>\u062d\u0645\u0636<\/sub> \u00d7 20.0 mL = 0.10 M \u00d7 25.0 mL. \u0625\u0630\u0646 M<sub>\u062d\u0645\u0636<\/sub> = (0.10 \u00d7 25.0) \/ 20.0 = 0.125 M.\"},{\"question\":\"\u0645\u0627 \u0647\u064a \u0627\u0644\u0643\u0648\u0627\u0634\u0641 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629\u061f\",\"options\":[\"\u0645\u0648\u0627\u062f \u062a\u0632\u064a\u062f \u0645\u0646 \u0633\u0631\u0639\u0629 \u0627\u0644\u062a\u0641\u0627\u0639\u0644\",\"\u0645\u0648\u0627\u062f \u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629 \u0639\u0636\u0648\u064a\u0629 \u0636\u0639\u064a\u0641\u0629 \u064a\u062a\u063a\u064a\u0631 \u0644\u0648\u0646\u0647\u0627 \u0645\u0639 \u062a\u063a\u064a\u0631 \u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646\u064a \u0644\u0644\u0645\u062d\u0644\u0648\u0644\",\"\u0645\u0648\u0627\u062f \u062a\u0633\u062a\u062e\u062f\u0645 \u0644\u062a\u0631\u0643\u064a\u0632 \u0627\u0644\u0645\u062d\u0627\u0644\u064a\u0644\",\"\u0645\u0648\u0627\u062f \u062a\u0642\u0644\u0644 \u0645\u0646 \u062d\u0645\u0648\u0636\u0629 \u0627\u0644\u0645\u062d\u0627\u0644\u064a\u0644\"],\"correctAnswer\":\"\u0645\u0648\u0627\u062f \u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629 \u0639\u0636\u0648\u064a\u0629 \u0636\u0639\u064a\u0641\u0629 \u064a\u062a\u063a\u064a\u0631 \u0644\u0648\u0646\u0647\u0627 \u0645\u0639 \u062a\u063a\u064a\u0631 \u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646\u064a \u0644\u0644\u0645\u062d\u0644\u0648\u0644\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0627\u0644\u0643\u0648\u0627\u0634\u0641 \u0647\u064a \u0623\u062d\u0645\u0627\u0636 \u0623\u0648 \u0642\u0648\u0627\u0639\u062f \u0639\u0636\u0648\u064a\u0629 \u0636\u0639\u064a\u0641\u0629 \u0644\u0647\u0627 \u0623\u0644\u0648\u0627\u0646 \u0645\u062e\u062a\u0644\u0641\u0629 \u062d\u0633\u0628 \u0642\u064a\u0645\u0629 \u0627\u0644\u0640 pH.\"},{\"question\":\"\u0627\u0644\u0635\u064a\u063a\u0629 \u0627\u0644\u0639\u0627\u0645\u0629 \u0644\u0643\u0627\u0634\u0641 \u062d\u0645\u0636\u064a \u064a\u0645\u0643\u0646 \u062a\u0645\u062b\u064a\u0644\u0647\u0627 \u0628\u0640 HIn. \u0645\u0627 \u0627\u0644\u0630\u064a \u064a\u062d\u062f\u062b \u0639\u0646\u062f\u0645\u0627 \u064a\u0636\u0627\u0641 \u0647\u0630\u0627 \u0627\u0644\u0643\u0627\u0634\u0641 \u0625\u0644\u0649 \u0645\u062d\u0644\u0648\u0644 \u0642\u0627\u0639\u062f\u064a\u061f\",\"options\":[\"\u064a\u0632\u0627\u062d \u0627\u0644\u0627\u062a\u0632\u0627\u0646 \u0646\u062d\u0648 \u0627\u0644\u064a\u0633\u0627\u0631 \u0648\u064a\u0633\u0648\u062f \u0644\u0648\u0646 HIn\",\"\u064a\u0632\u0627\u062d \u0627\u0644\u0627\u062a\u0632\u0627\u0646 \u0646\u062d\u0648 \u0627\u0644\u064a\u0645\u064a\u0646 \u0648\u064a\u0633\u0648\u062f \u0644\u0648\u0646 In\u207b\",\"\u0644\u0627 \u064a\u062d\u062f\u062b \u0623\u064a \u062a\u063a\u064a\u064a\u0631 \u0641\u064a \u0644\u0648\u0646 \u0627\u0644\u0643\u0627\u0634\u0641\",\"\u064a\u062d\u062f\u062b \u062a\u0631\u0633\u064a\u0628 \u0644\u0644\u0643\u0627\u0634\u0641\"],\"correctAnswer\":\"\u064a\u0632\u0627\u062d \u0627\u0644\u0627\u062a\u0632\u0627\u0646 \u0646\u062d\u0648 \u0627\u0644\u064a\u0645\u064a\u0646 \u0648\u064a\u0633\u0648\u062f \u0644\u0648\u0646 In\u207b\",\"difficulty\":\"\u0635\u0639\u0628\",\"explanation\":\"\u0641\u064a \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0642\u0627\u0639\u062f\u064a\u060c \u062a\u062a\u0641\u0627\u0639\u0644 OH\u207b \u0645\u0639 H\u2083O\u207a\u060c \u0645\u0645\u0627 \u064a\u0642\u0644\u0644 \u062a\u0631\u0643\u064a\u0632 H\u2083O\u207a. \u0648\u0641\u0642\u0627\u064b \u0644\u0645\u0628\u062f\u0623 \u0644\u0648\u0634\u0627\u062a\u0644\u064a\u064a\u0647\u060c \u064a\u0632\u0627\u062d \u0627\u0644\u0627\u062a\u0632\u0627\u0646 HIn + H\u2082O \u21cc H\u2083O\u207a + In\u207b \u0646\u062d\u0648 \u0627\u0644\u064a\u0645\u064a\u0646 \u0644\u062a\u0639\u0648\u064a\u0636 \u0627\u0644\u0646\u0642\u0635\u060c \u0641\u064a\u0633\u0648\u062f \u0644\u0648\u0646 \u0627\u0644\u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0645\u0631\u0627\u0641\u0642\u0629 In\u207b.\"},{\"question\":\"\u0623\u064a \u0627\u0644\u0643\u0648\u0627\u0634\u0641 \u0627\u0644\u062a\u0627\u0644\u064a\u0629 \u064a\u062a\u063a\u064a\u0631 \u0644\u0648\u0646\u0647 \u0645\u0646 \u0639\u062f\u064a\u0645 \u0627\u0644\u0644\u0648\u0646 \u0625\u0644\u0649 \u0632\u0647\u0631\u064a \u0639\u0646\u062f \u0627\u0644\u0645\u062f\u0649 \u0627\u0644\u062a\u0642\u0631\u064a\u0628\u064a 8.2 \u2013 10.0\u061f\",\"options\":[\"\u0627\u0644\u0645\u064a\u062b\u064a\u0644 \u0627\u0644\u0628\u0631\u062a\u0642\u0627\u0644\u064a\",\"\u0627\u0644\u0628\u0631\u0648\u0645\u0648\u062b\u064a\u0645\u0648\u0644 \u0627\u0644\u0623\u0632\u0631\u0642\",\"\u0627\u0644\u0641\u064a\u0646\u0648\u0644\u0641\u062b\u0627\u0644\u064a\u0646\",\"\u0627\u0644\u0645\u064a\u062b\u064a\u0644 \u0627\u0644\u0623\u062d\u0645\u0631\"],\"correctAnswer\":\"\u0627\u0644\u0641\u064a\u0646\u0648\u0644\u0641\u062b\u0627\u0644\u064a\u0646\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0627\u0644\u0641\u064a\u0646\u0648\u0644\u0641\u062b\u0627\u0644\u064a\u0646 \u0647\u0648 \u0627\u0644\u0643\u0627\u0634\u0641 \u0627\u0644\u0645\u0639\u0631\u0648\u0641 \u0627\u0644\u0630\u064a \u064a\u0643\u0648\u0646 \u0639\u062f\u064a\u0645 \u0627\u0644\u0644\u0648\u0646 \u0641\u064a \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u062d\u0645\u0636\u064a \u0648\u064a\u0632\u0647\u0631\u064a \u0641\u064a \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u0642\u0627\u0639\u062f\u064a \u0636\u0645\u0646 \u0647\u0630\u0627 \u0627\u0644\u0645\u062f\u0649.\"},{\"question\":\"\u0644\u0645\u0627\u0630\u0627 \u064a\u0639\u062a\u0628\u0631 \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0643\u0627\u0634\u0641 \u0627\u0644\u0645\u0646\u0627\u0633\u0628 \u0623\u0645\u0631\u0627\u064b \u0645\u0647\u0645\u0627\u064b \u0641\u064a \u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629\u061f\",\"options\":[\"\u0644\u062c\u0639\u0644 \u0627\u0644\u062a\u0641\u0627\u0639\u0644 \u0623\u0633\u0631\u0639\",\"\u0644\u0632\u064a\u0627\u062f\u0629 \u062d\u062c\u0645 \u0627\u0644\u0645\u062d\u0644\u0648\u0644\",\"\u0644\u0636\u0645\u0627\u0646 \u0623\u0646 \u064a\u062a\u063a\u064a\u0631 \u0644\u0648\u0646 \u0627\u0644\u0643\u0627\u0634\u0641 \u0639\u0646\u062f \u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u0643\u0627\u0641\u0624 \u0623\u0648 \u0642\u0631\u064a\u0628\u064b\u0627 \u0645\u0646\u0647\u0627\",\"\u0644\u062a\u063a\u064a\u064a\u0631 \u062a\u0631\u0643\u064a\u0632 \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0642\u064a\u0627\u0633\u064a\"],\"correctAnswer\":\"\u0644\u0636\u0645\u0627\u0646 \u0623\u0646 \u064a\u062a\u063a\u064a\u0631 \u0644\u0648\u0646 \u0627\u0644\u0643\u0627\u0634\u0641 \u0639\u0646\u062f \u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u0643\u0627\u0641\u0624 \u0623\u0648 \u0642\u0631\u064a\u0628\u064b\u0627 \u0645\u0646\u0647\u0627\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u064a\u062c\u0628 \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0643\u0627\u0634\u0641 \u0628\u062d\u064a\u062b \u062a\u062a\u0637\u0627\u0628\u0642 \u0646\u0642\u0637\u0629 \u0646\u0647\u0627\u064a\u062a\u0647 (\u062a\u063a\u064a\u0631 \u0627\u0644\u0644\u0648\u0646) \u0645\u0639 \u0646\u0642\u0637\u0629 \u0627\u0644\u062a\u0643\u0627\u0641\u0624 \u0644\u0644\u062a\u0641\u0627\u0639\u0644 \u0644\u0636\u0645\u0627\u0646 \u062f\u0642\u0629 \u0627\u0644\u0646\u062a\u0627\u0626\u062c.\"},{\"question\":\"\u0625\u0630\u0627 \u0643\u0627\u0646 \u062a\u0631\u0643\u064a\u0632 [H\u2083O\u207a] \u0641\u064a \u0645\u062d\u0644\u0648\u0644 \u0645\u0627 \u0647\u0648 3.16 \u00d7 10\u207b\u2075 M\u060c \u0641\u0645\u0627 \u0647\u064a \u0642\u064a\u0645\u0629 pH \u0627\u0644\u062a\u0642\u0631\u064a\u0628\u064a\u0629 \u0644\u0644\u0645\u062d\u0644\u0648\u0644\u061f\",\"options\":[\"5.5\",\"4.5\",\"3.5\",\"6.5\"],\"correctAnswer\":\"4.5\",\"difficulty\":\"\u0635\u0639\u0628\",\"explanation\":\"pH = -log[H\u2083O\u207a] = -log(3.16 \u00d7 10\u207b\u2075) \u2248 - (log(3.16) + log(10\u207b\u2075)) \u2248 - (0.5 - 5) = 4.5.\"},{\"question\":\"\u0623\u064a \u0645\u0646 \u0627\u0644\u0623\u0632\u0648\u0627\u062c \u0627\u0644\u062a\u0627\u0644\u064a\u0629 \u064a\u0645\u062b\u0644 \u062d\u0645\u0636\u0627\u064b \u0642\u0648\u064a\u0627\u064b \u0648\u0642\u0627\u0639\u062f\u0629 \u0642\u0648\u064a\u0629 \u0639\u0644\u0649 \u0627\u0644\u062a\u0648\u0627\u0644\u064a\u061f\",\"options\":[\"HF \u0648 NH\u2083\",\"HNO\u2083 \u0648 KOH\",\"H\u2082SO\u2084 \u0648 Mg(OH)\u2082\",\"CH\u2083COOH \u0648 NaOH\"],\"correctAnswer\":\"HNO\u2083 \u0648 KOH\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"HNO\u2083 (\u062d\u0645\u0636 \u0627\u0644\u0646\u064a\u062a\u0631\u064a\u0643) \u0647\u0648 \u062d\u0645\u0636 \u0642\u0648\u064a \u0648 KOH (\u0647\u064a\u062f\u0631\u0648\u0643\u0633\u064a\u062f \u0627\u0644\u0628\u0648\u062a\u0627\u0633\u064a\u0648\u0645) \u0647\u0648 \u0642\u0627\u0639\u062f\u0629 \u0642\u0648\u064a\u0629. HF \u0648 NH\u2083 \u0636\u0639\u064a\u0641\u0627\u0646. Mg(OH)\u2082 \u0642\u0627\u0639\u062f\u0629 \u0642\u0648\u064a\u0629 \u0646\u0633\u0628\u064a\u0627\u064b \u0644\u0643\u0646 \u0644\u064a\u0633\u062a \u0628\u0646\u0641\u0633 \u0642\u0648\u0629 KOH\u060c \u0648\u0627\u0644\u0628\u0631\u0648\u062a\u0648\u0646 \u0627\u0644\u062b\u0627\u0646\u064a \u0644\u0640 H\u2082SO\u2084 \u0636\u0639\u064a\u0641 \u0646\u0633\u0628\u064a\u0627\u064b. CH\u2083COOH \u062d\u0645\u0636 \u0636\u0639\u064a\u0641.\"},{\"question\":\"\u0645\u0627\u0630\u0627 \u064a\u062d\u062f\u062b \u0644\u062a\u0631\u0643\u064a\u0632 [OH\u207b] \u0641\u064a \u0645\u062d\u0644\u0648\u0644 \u0625\u0630\u0627 \u0632\u0627\u062f\u062a \u062d\u0645\u0648\u0636\u062a\u0647\u061f\",\"options\":[\"\u064a\u0632\u062f\u0627\u062f\",\"\u064a\u0642\u0644\",\"\u064a\u0628\u0642\u0649 \u062b\u0627\u0628\u062a\u0627\u064b\",\"\u064a\u0635\u0628\u062d \u0645\u0633\u0627\u0648\u064a\u0627\u064b \u0644\u0640 [H\u2083O\u207a]\"],\"correctAnswer\":\"\u064a\u0642\u0644\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0625\u0630\u0627 \u0632\u0627\u062f\u062a \u062d\u0645\u0648\u0636\u0629 \u0627\u0644\u0645\u062d\u0644\u0648\u0644\u060c \u0641\u0647\u0630\u0627 \u064a\u0639\u0646\u064a \u0632\u064a\u0627\u062f\u0629 [H\u2083O\u207a]. \u0648\u0628\u0645\u0627 \u0623\u0646 Kw \u062b\u0627\u0628\u062a\u060c \u0641\u0625\u0646 \u0632\u064a\u0627\u062f\u0629 [H\u2083O\u207a] \u064a\u062c\u0628 \u0623\u0646 \u064a\u0642\u0627\u0628\u0644\u0647\u0627 \u0646\u0642\u0635\u0627\u0646 \u0641\u064a [OH\u207b] \u0644\u0644\u062d\u0641\u0627\u0638 \u0639\u0644\u0649 \u062d\u0627\u0635\u0644 \u0627\u0644\u0636\u0631\u0628 \u062b\u0627\u0628\u062a\u0627\u064b.\"},{\"question\":\"\u0641\u064a \u062a\u0641\u0627\u0639\u0644 \u0627\u0644\u062a\u0623\u064a\u0646 \u0627\u0644\u0630\u0627\u062a\u064a \u0644\u0644\u0645\u0627\u0621\u060c \u0623\u064a \u062c\u0632\u064a\u0621 \u0645\u0627\u0621 \u064a\u0639\u0645\u0644 \u0643\u062d\u0645\u0636\u061f\",\"options\":[\"\u0627\u0644\u0630\u064a \u064a\u0643\u062a\u0633\u0628 \u0628\u0631\u0648\u062a\u0648\u0646\u0627\u064b\",\"\u0627\u0644\u0630\u064a \u064a\u0641\u0642\u062f \u0628\u0631\u0648\u062a\u0648\u0646\u0627\u064b\",\"\u0627\u0644\u0630\u064a \u0644\u0627 \u064a\u0634\u0627\u0631\u0643 \u0641\u064a \u0627\u0644\u062a\u0641\u0627\u0639\u0644\",\"\u0627\u0644\u0630\u064a \u064a\u062a\u0623\u064a\u0646 \u0628\u0627\u0644\u0643\u0627\u0645\u0644\"],\"correctAnswer\":\"\u0627\u0644\u0630\u064a \u064a\u0641\u0642\u062f \u0628\u0631\u0648\u062a\u0648\u0646\u0627\u064b\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0648\u0641\u0642\u0627\u064b \u0644\u0645\u0641\u0647\u0648\u0645 \u0628\u0631\u0648\u0646\u0633\u062a\u062f-\u0644\u0648\u0631\u064a\u060c \u0627\u0644\u062d\u0645\u0636 \u0647\u0648 \u0627\u0644\u0645\u0627\u062f\u0629 \u0627\u0644\u0645\u0627\u0646\u062d\u0629 \u0644\u0644\u0628\u0631\u0648\u062a\u0648\u0646. \u0641\u064a \u0627\u0644\u062a\u0623\u064a\u0646 \u0627\u0644\u0630\u0627\u062a\u064a\u060c \u0623\u062d\u062f \u062c\u0632\u064a\u0626\u0627\u062a \u0627\u0644\u0645\u0627\u0621 \u064a\u0645\u0646\u062d \u0628\u0631\u0648\u062a\u0648\u0646\u0627\u064b (\u064a\u0633\u0644\u0643 \u0633\u0644\u0648\u0643 \u0627\u0644\u062d\u0645\u0636) \u0648\u0627\u0644\u0622\u062e\u0631 \u064a\u0633\u062a\u0642\u0628\u0644\u0647 (\u064a\u0633\u0644\u0643 \u0633\u0644\u0648\u0643 \u0627\u0644\u0642\u0627\u0639\u062f\u0629).\"},{\"question\":\"\u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u0642\u064a\u0645\u0629 pOH \u0644\u0645\u062d\u0644\u0648\u0644 \u0642\u0627\u0639\u062f\u064a \u062a\u0633\u0627\u0648\u064a 1.5\u060c \u0641\u0645\u0627 \u0647\u0648 \u062a\u0631\u0643\u064a\u0632 [OH\u207b] \u0627\u0644\u062a\u0642\u0631\u064a\u0628\u064a\u061f\",\"options\":[\"10\u207b\u00b9\u00b7\u2075 M\",\"3.16 \u00d7 10\u207b\u00b2 M\",\"3.16 \u00d7 10\u207b\u00b9\u00b2 M\",\"12.5 M\"],\"correctAnswer\":\"3.16 \u00d7 10\u207b\u00b2 M\",\"difficulty\":\"\u0635\u0639\u0628\",\"explanation\":\"[OH\u207b] = 10\u207bpOH = 10\u207b\u00b9\u00b7\u2075 M. \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0622\u0644\u0629 \u0627\u0644\u062d\u0627\u0633\u0628\u0629\u060c 10\u207b\u00b9\u00b7\u2075 \u2248 0.0316 M \u0623\u0648 3.16 \u00d7 10\u207b\u00b2 M.\"},{\"question\":\"\u0645\u0627 \u0647\u064a \u0627\u0644\u0645\u0627\u062f\u0629 \u0627\u0644\u062a\u064a \u064a\u062a\u0645 \u062a\u062d\u062f\u064a\u062f \u062a\u0631\u0643\u064a\u0632\u0647\u0627 \u0641\u064a \u0639\u0645\u0644\u064a\u0629 \u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629 \u0648\u062a\u0639\u0631\u0641 \u0628\u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0645\u0631\u0627\u062f \u062a\u062d\u0644\u064a\u0644\u0647\u061f\",\"options\":[\"\u0627\u0644\u0643\u0627\u0634\u0641\",\"\u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0642\u064a\u0627\u0633\u064a (Titrant)\",\"\u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0645\u0631\u0627\u062f \u062a\u062d\u0644\u064a\u0644\u0647 (Analyte)\",\"\u0627\u0644\u0646\u0627\u062a\u062c\"],\"correctAnswer\":\"\u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0645\u0631\u0627\u062f \u062a\u062d\u0644\u064a\u0644\u0647 (Analyte)\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0645\u0631\u0627\u062f \u062a\u062d\u0644\u064a\u0644\u0647 (Analyte) \u0647\u0648 \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0630\u0648 \u0627\u0644\u062a\u0631\u0643\u064a\u0632 \u0627\u0644\u0645\u062c\u0647\u0648\u0644 \u0627\u0644\u0630\u064a \u064a\u062a\u0645 \u062a\u062d\u062f\u064a\u062f \u062a\u0631\u0643\u064a\u0632\u0647 \u0641\u064a \u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629.\"},{\"question\":\"\u0643\u0627\u0634\u0641 \u0627\u0644\u0645\u064a\u062b\u064a\u0644 \u0627\u0644\u0628\u0631\u062a\u0642\u0627\u0644\u064a \u064a\u0643\u0648\u0646 \u0644\u0648\u0646\u0647 \u0623\u062d\u0645\u0631 \u0641\u064a \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u062d\u0645\u0636\u064a. \u0645\u0627\u0630\u0627 \u0633\u064a\u0643\u0648\u0646 \u0644\u0648\u0646\u0647 \u0641\u064a \u0645\u062d\u0644\u0648\u0644 \u0644\u0647 pH = 5\u061f\",\"options\":[\"\u0623\u062d\u0645\u0631\",\"\u0623\u0635\u0641\u0631\",\"\u0623\u0632\u0631\u0642\",\"\u0639\u062f\u064a\u0645 \u0627\u0644\u0644\u0648\u0646\"],\"correctAnswer\":\"\u0623\u0635\u0641\u0631\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u0645\u062f\u0649 \u062a\u063a\u064a\u0631 \u0644\u0648\u0646 \u0627\u0644\u0645\u064a\u062b\u064a\u0644 \u0627\u0644\u0628\u0631\u062a\u0642\u0627\u0644\u064a \u0647\u0648 2.9 \u2013 4.0. \u0641\u064a \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u062d\u0645\u0636\u064a (\u0623\u0642\u0644 \u0645\u0646 2.9) \u064a\u0643\u0648\u0646 \u0623\u062d\u0645\u0631\u060c \u0648\u0641\u064a \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u0642\u0627\u0639\u062f\u064a (\u0623\u0643\u0628\u0631 \u0645\u0646 4.0) \u064a\u0643\u0648\u0646 \u0623\u0635\u0641\u0631. \u0628\u0645\u0627 \u0623\u0646 pH=5 \u0623\u0643\u0628\u0631 \u0645\u0646 \u0627\u0644\u0645\u062f\u0649 \u0627\u0644\u062d\u0645\u0636\u064a\u060c \u0633\u064a\u0643\u0648\u0646 \u0623\u0635\u0641\u0631.\"},{\"question\":\"\u0645\u0627 \u0647\u0648 \u0627\u0644\u062d\u0645\u0636 \u0627\u0644\u0642\u0648\u064a \u0627\u0644\u0630\u064a \u064a\u0634\u0627\u0631 \u0625\u0644\u0649 '\u0627\u0644\u0628\u0631\u0648\u062a\u0648\u0646 \u0627\u0644\u0623\u0648\u0644' \u0641\u0642\u0637 \u0641\u064a \u0642\u0627\u0626\u0645\u0629 \u0627\u0644\u062d\u0645\u0648\u0636 \u0627\u0644\u0642\u0648\u064a\u0629\u061f\",\"options\":[\"HCl\",\"HNO\u2083\",\"H\u2082SO\u2084\",\"HBr\"],\"correctAnswer\":\"H\u2082SO\u2084\",\"difficulty\":\"\u0645\u062a\u0648\u0633\u0637\",\"explanation\":\"\u062d\u0645\u0636 \u0627\u0644\u0643\u0628\u0631\u064a\u062a\u064a\u0643 (H\u2082SO\u2084) \u0647\u0648 \u062d\u0645\u0636 \u062b\u0646\u0627\u0626\u064a \u0627\u0644\u0628\u0631\u0648\u062a\u0648\u0646. \u0627\u0644\u0628\u0631\u0648\u062a\u0648\u0646 \u0627\u0644\u0623\u0648\u0644 \u064a\u062a\u0623\u064a\u0646 \u0628\u0634\u0643\u0644 \u0643\u0627\u0645\u0644\u060c \u0628\u064a\u0646\u0645\u0627 \u0627\u0644\u0628\u0631\u0648\u062a\u0648\u0646 \u0627\u0644\u062b\u0627\u0646\u064a \u064a\u062a\u0623\u064a\u0646 \u0628\u0634\u0643\u0644 \u062c\u0632\u0626\u064a (\u062d\u0645\u0636 \u0636\u0639\u064a\u0641)\u060c \u0644\u0630\u0644\u0643 \u064a\u064f\u0630\u0643\u0631 \u0627\u0644\u0628\u0631\u0648\u062a\u0648\u0646 \u0627\u0644\u0623\u0648\u0644 \u0641\u0642\u0637 \u0636\u0645\u0646 \u0627\u0644\u062d\u0645\u0648\u0636 \u0627\u0644\u0642\u0648\u064a\u0629.\"},{\"question\":\"\u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u0642\u064a\u0645\u0629 pH \u0644\u0645\u062d\u0644\u0648\u0644 \u0645\u0627 \u062a\u0633\u0627\u0648\u064a 7 \u0639\u0646\u062f 25\u00b0C\u060c \u0641\u0645\u0627 \u0647\u0648 \u062a\u0635\u0646\u064a\u0641 \u0647\u0630\u0627 \u0627\u0644\u0645\u062d\u0644\u0648\u0644\u061f\",\"options\":[\"\u062d\u0645\u0636\u064a\",\"\u0642\u0627\u0639\u062f\u064a\",\"\u0645\u062a\u0639\u0627\u062f\u0644\",\"\u0644\u0627 \u064a\u0645\u0643\u0646 \u062a\u062d\u062f\u064a\u062f\u0647\"],\"correctAnswer\":\"\u0645\u062a\u0639\u0627\u062f\u0644\",\"difficulty\":\"\u0633\u0647\u0644\",\"explanation\":\"\u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0630\u064a \u062a\u0643\u0648\u0646 \u0642\u064a\u0645\u0629 pH \u0644\u0647 \u062a\u0633\u0627\u0648\u064a 7 \u0639\u0646\u062f 25\u00b0C \u064a\u064f\u0635\u0646\u0641 \u0639\u0644\u0649 \u0623\u0646\u0647 \u0645\u062a\u0639\u0627\u062f\u0644.\"}];\n \n const totalQuestions = quizData.length;\n let userAnswers = new Array(totalQuestions).fill(\"\");\n let currentIndex = 0;\n let isSubmitted = false;\n \n const dynamicArea = document.getElementById(\"dynamic-question-area\");\n const currentQSpan = document.getElementById(\"current-q-num\");\n const totalQSpan = document.getElementById(\"total-q-count\");\n const difficultyBadge = document.getElementById(\"difficulty-badge\");\n const answeredCountSpan = document.getElementById(\"answered-count\");\n const progressPercentSpan = document.getElementById(\"progress-percent\");\n const progressBar = document.getElementById(\"progress-bar\");\n const resultPanel = document.getElementById(\"result-panel\");\n const finalScoreSpan = document.getElementById(\"final-score-text\");\n const resultMsgSpan = document.getElementById(\"result-message\");\n \n const firstBtn = document.getElementById(\"first-btn\");\n const prevBtn = document.getElementById(\"prev-btn\");\n const nextBtn = document.getElementById(\"next-btn\");\n const lastBtn = document.getElementById(\"last-btn\");\n const submitBtn = document.getElementById(\"submit-final-btn\");\n const resetBtn = document.getElementById(\"reset-exam-btn\");\n \n totalQSpan.textContent = totalQuestions;\n \n function updateProgressStats() {\n const answered = userAnswers.filter(a => a !== \"\").length;\n answeredCountSpan.textContent = answered;\n const percent = Math.round((answered \/ totalQuestions) * 100);\n progressPercentSpan.textContent = `${percent}%`;\n progressBar.style.width = `${percent}%`;\n }\n \n function saveCurrentSelected() {\n const selectedRadio = document.querySelector(`input[name=\"current-question-radio\"]:checked`);\n if (selectedRadio) {\n userAnswers[currentIndex] = selectedRadio.value;\n }\n updateProgressStats();\n }\n \n function escapeHtml(str) {\n if(!str) return \"\";\n return str.replace(\/[&<>]\/g, function(m) {\n if (m === '&') return '&';\n if (m === '<') return '<';\n if (m === '>') return '>';\n return m;\n });\n }\n \n function renderCurrentQuestion() {\n const q = quizData[currentIndex];\n const selectedAns = userAnswers[currentIndex];\n const isCorrectMode = isSubmitted;\n let optionsHtml = \"\";\n q.options.forEach((opt, idx) => {\n const isSelected = (selectedAns === opt);\n let additionalClasses = \"\";\n let disabledAttr = isCorrectMode ? \"disabled\" : \"\";\n let radioChecked = isSelected ? \"checked\" : \"\";\n if (isCorrectMode) {\n const isCorrectAnswer = (opt === q.correctAnswer);\n if (isCorrectAnswer) additionalClasses = \"correct-highlight\";\n else if (isSelected && !isCorrectAnswer) additionalClasses = \"incorrect-highlight\";\n }\n optionsHtml += `\n <div class=\"option-btn ${additionalClasses} ${isCorrectMode ? 'disabled-opt' : ''}\">\n <input type=\"radio\" name=\"current-question-radio\" value=\"${escapeHtml(opt)}\" id=\"opt_${idx}\" ${radioChecked} ${disabledAttr} class=\"option-radio\">\n <label for=\"opt_${idx}\" class=\"option-text cursor-pointer flex-1\">${escapeHtml(opt)}<\/label>\n <\/div>\n `;\n });\n let explanationHtml = \"\";\n if (isCorrectMode) {\n explanationHtml = `<div class=\"explanation-box\"><span class=\"font-bold text-indigo-300\">📖 \u0627\u0644\u062a\u0648\u0636\u064a\u062d:<\/span><br>${escapeHtml(q.explanation || \"\u0627\u0644\u0625\u062c\u0627\u0628\u0629 \u0627\u0644\u0635\u062d\u064a\u062d\u0629: \" + q.correctAnswer)}<\/div>`;\n }\n const difficultyColor = q.difficulty === '\u0633\u0647\u0644' ? 'text-green-300' : q.difficulty === '\u0645\u062a\u0648\u0633\u0637' ? 'text-yellow-300' : 'text-rose-300';\n const fullHtml = `\n <div class=\"mb-2\">\n <div class=\"flex justify-between items-start flex-wrap gap-2\">\n <h2 class=\"text-xl md:text-2xl font-semibold text-white leading-tight\">${escapeHtml(q.question)}<\/h2>\n <span class=\"badge-difficulty ${difficultyColor} border border-white\/20\">⭐ ${q.difficulty || '\u0645\u062a\u0648\u0633\u0637'}<\/span>\n <\/div>\n <\/div>\n <div class=\"mt-4 space-y-2\">${optionsHtml}<\/div>\n ${explanationHtml}\n `;\n dynamicArea.innerHTML = fullHtml;\n if (!isCorrectMode) {\n const radioInputs = document.querySelectorAll(`input[name=\"current-question-radio\"]`);\n radioInputs.forEach(radio => {\n radio.addEventListener(\"change\", () => {\n userAnswers[currentIndex] = radio.value;\n updateProgressStats();\n });\n });\n }\n currentQSpan.textContent = currentIndex + 1;\n difficultyBadge.innerHTML = `<span class=\"text-indigo-200\">\u0627\u0644\u0635\u0639\u0648\u0628\u0629:<\/span> <strong class=\"${difficultyColor}\">${q.difficulty || '\u0645\u062a\u0648\u0633\u0637'}<\/strong>`;\n updateProgressStats();\n }\n \n function goToQuestion(newIndex) {\n if (!isSubmitted) saveCurrentSelected();\n currentIndex = Math.min(totalQuestions - 1, Math.max(0, newIndex));\n renderCurrentQuestion();\n updateNavButtonsState();\n }\n \n function updateNavButtonsState() {\n firstBtn.disabled = (currentIndex === 0);\n prevBtn.disabled = (currentIndex === 0);\n nextBtn.disabled = (currentIndex === totalQuestions - 1);\n lastBtn.disabled = (currentIndex === totalQuestions - 1);\n }\n \n function calculateAndShowResult() {\n if (isSubmitted) return;\n saveCurrentSelected();\n let score = 0;\n for (let i = 0; i < totalQuestions; i++) {\n if (userAnswers[i] === quizData[i].correctAnswer) score++;\n }\n isSubmitted = true;\n resultPanel.classList.remove(\"hidden\");\n finalScoreSpan.innerText = `${score} \/ ${totalQuestions}`;\n let percentVal = Math.round((score \/ totalQuestions) * 100);\n resultMsgSpan.innerText = percentVal >= 70 ? \"🏆 \u0623\u062f\u0627\u0621 \u0631\u0627\u0626\u0639! 🎉\" : (percentVal >= 50 ? \"📘 \u062c\u064a\u062f\u060c \u064a\u0645\u0643\u0646\u0643 \u0645\u0631\u0627\u062c\u0639\u0629 \u0628\u0639\u0636 \u0627\u0644\u0645\u0641\u0627\u0647\u064a\u0645.\" : \"📚 \u062a\u062d\u062a\u0627\u062c \u0645\u0631\u0627\u062c\u0639\u0629 \u0627\u0644\u0642\u0648\u0627\u0646\u064a\u0646 \u0648\u0627\u0644\u0646\u0638\u0631\u064a\u0629.\");\n renderCurrentQuestion();\n submitBtn.disabled = true;\n submitBtn.classList.add(\"opacity-50\", \"cursor-not-allowed\");\n }\n \n function resetExam() {\n isSubmitted = false;\n userAnswers = new Array(totalQuestions).fill(\"\");\n currentIndex = 0;\n resultPanel.classList.add(\"hidden\");\n submitBtn.disabled = false;\n submitBtn.classList.remove(\"opacity-50\", \"cursor-not-allowed\");\n renderCurrentQuestion();\n updateProgressStats();\n updateNavButtonsState();\n }\n \n firstBtn.addEventListener(\"click\", () => goToQuestion(0));\n prevBtn.addEventListener(\"click\", () => goToQuestion(currentIndex - 1));\n nextBtn.addEventListener(\"click\", () => goToQuestion(currentIndex + 1));\n lastBtn.addEventListener(\"click\", () => goToQuestion(totalQuestions - 1));\n submitBtn.addEventListener(\"click\", calculateAndShowResult);\n resetBtn.addEventListener(\"click\", resetExam);\n \n renderCurrentQuestion();\n updateNavButtonsState();\n <\/script>\n<\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"<p>\u0627\u062e\u062a\u0628\u0627\u0631 \u062a\u0641\u0627\u0639\u0644\u064a: \u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646\u064a \u0648\u0627\u0644\u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u0645\u0624\u062b\u0631\u0629 🧪 \u0627\u062e\u062a\u0628\u0627\u0631: \u0627\u0644\u0631\u0642\u0645 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646\u064a \u0648\u0627\u0644\u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u0645\u0624\u062b\u0631\u0629 \u0627\u0644\u062b\u0627\u0646\u0648\u064a – \u0627\u0644\u0635\u0641 \u0627\u0644\u062b\u0627\u0646\u064a \u0639\u0634\u0631 – \u0627\u0644\u0645\u0633\u0627\u0631 \u0627\u0644\u0623\u0643\u0627\u062f\u064a\u0645\u064a | \u0627\u0644\u062f\u0631\u0633 \u0627\u0644\u062b\u0627\u0646\u064a 📋 \u0627\u0644\u0633\u0624\u0627\u0644 1 \/ 0 \u2713 \u0627\u0644\u0645\u062c\u0627\u0628 \u0639\u0646\u0647: 0 \u0645\u0646 0 \u0627\u0644\u062a\u0642\u062f\u0645 \u0641\u064a \u0627\u0644\u0623\u0633\u0626\u0644\u0629 0% ⏮️ \u0627\u0644\u0623\u0648\u0644 ▶️ \u0627\u0644\u0633\u0627\u0628\u0642 \u0627\u0644\u062a\u0627\u0644\u064a ◀️ \u0627\u0644\u0623\u062e\u064a\u0631 ⏭️ ✨ \u0625\u0638\u0647\u0627\u0631 \u0627\u0644\u0646\u062a\u064a\u062c\u0629 ✨ 📊 \u0646\u062a\u064a\u062c\u062a\u0643 \u0627\u0644\u0646\u0647\u0627\u0626\u064a\u0629 0 \/ […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-17959","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/smartedujo.com\/ar\/wp-json\/wp\/v2\/pages\/17959","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/smartedujo.com\/ar\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/smartedujo.com\/ar\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/smartedujo.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/smartedujo.com\/ar\/wp-json\/wp\/v2\/comments?post=17959"}],"version-history":[{"count":1,"href":"https:\/\/smartedujo.com\/ar\/wp-json\/wp\/v2\/pages\/17959\/revisions"}],"predecessor-version":[{"id":17960,"href":"https:\/\/smartedujo.com\/ar\/wp-json\/wp\/v2\/pages\/17959\/revisions\/17960"}],"wp:attachment":[{"href":"https:\/\/smartedujo.com\/ar\/wp-json\/wp\/v2\/media?parent=17959"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}