{"common":{"save":0,"post_id":"9784","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8524","post_id":"9784","mon_id":"1159892","chapter_id":"1160178","question":"<p data-pm-slice=\"0 0 []\">Dung d\u1ecbch acetic acid ph\u1ea3n \u1ee9ng \u0111\u01b0\u1ee3c v\u1edbi t\u1ea5t c\u1ea3 các ch\u1ea5t trong dãy nào sau \u0111ây?<\/p>","options":["A. Cu, CuO, HCl.","B. NaOH, Cu, NaCl.","C. Na, NaCl, CuO. ","D. NaOH, Na, CaCO3."],"correct":"4","level":"2","hint":"","answer":"<p>\u0110áp án:<strong> D. NaOH, Na, CaCO3.<\/strong><\/p><p data-end=\"98\" data-start=\"58\">Axit axetic (CH\u2083COOH) ph\u1ea3n \u1ee9ng \u0111\u01b0\u1ee3c v\u1edbi:<\/p><ul data-end=\"242\" data-start=\"100\"> <li data-end=\"139\" data-start=\"100\"><p data-end=\"139\" data-start=\"102\"><strong data-end=\"110\" data-start=\"102\">NaOH<\/strong> (baz\u01a1) → t\u1ea1o mu\u1ed1i + n\u01b0\u1edbc<\/p><\/li> <li data-end=\"188\" data-start=\"140\"><p data-end=\"188\" data-start=\"142\"><strong data-end=\"148\" data-start=\"142\">Na<\/strong> (kim lo\u1ea1i m\u1ea1nh) → t\u1ea1o mu\u1ed1i + khí H\u2082<\/p><\/li> <li data-end=\"242\" data-start=\"189\"><p data-end=\"242\" data-start=\"191\"><strong data-end=\"200\" data-start=\"191\">CaCO\u2083<\/strong> (mu\u1ed1i cacbonat) → t\u1ea1o mu\u1ed1i + CO\u2082 + n\u01b0\u1edbc<\/p><\/li><\/ul>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-07-30 23:25:22","option_type":"txt","len":2},{"id":"8525","post_id":"9784","mon_id":"1159892","chapter_id":"1160178","question":"<p data-pm-slice=\"0 0 []\">Cho các ph\u1ea3n \u1ee9ng sau \u1edf \u0111i\u1ec1u ki\u1ec7n thích h\u1ee3p:<\/p><p>(1) Lên men gi\u1ea5m ethyl alcohol.<\/p><p>(2) Oxi hóa không hoàn toàn Acetic aldehyde.<\/p><p>(3) Oxi hóa không hoàn toàn butane.<\/p><p>(4) Cho methanol tác d\u1ee5ng v\u1edbi carbon oxide.<\/p><p>Trong nh\u1eefng ph\u1ea3n \u1ee9ng trên, s\u1ed1 ph\u1ea3n \u1ee9ng t\u1ea1o acetic acid là<br \/> <\/p>","options":["A. 1","B. 2","C. 3 ","D. 4"],"correct":"4","level":"2","hint":"","answer":"<p>\u0110áp án:<strong> D. 4<\/strong><\/p>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-07-30 23:26:41","option_type":"txt","len":0},{"id":"8526","post_id":"9784","mon_id":"1159892","chapter_id":"1160178","question":"<p data-pm-slice=\"0 0 []\">Dùng hóa ch\u1ea5t nào sau \u0111ây \u0111\u1ec3 phân bi\u1ec7t acrylic acid và acetic acid?<\/p>","options":["A. Dung d\u1ecbch brommine","B. Dung d\u1ecbch C2H5OH","C. Dung d\u1ecbch NaOH ","D. Dung d\u1ecbch Na2CO3"],"correct":"1","level":"2","hint":"","answer":"<p>\u0110áp án: <strong>A. Dung d\u1ecbch brommine<\/strong><\/p><p data-end=\"394\" data-start=\"356\"><strong data-end=\"394\" data-start=\"356\">Lí do các ch\u1ea5t khác không phù h\u1ee3p:<\/strong><\/p><ul data-end=\"527\" data-start=\"396\"> <li data-end=\"443\" data-start=\"396\"><p data-end=\"443\" data-start=\"398\"><strong data-end=\"408\" data-start=\"398\">C2H5OH<\/strong>: không ph\u1ea3n \u1ee9ng \u0111\u1eb7c bi\u1ec7t v\u1edbi axit.<\/p><\/li> <li data-end=\"527\" data-start=\"444\"><p data-end=\"527\" data-start=\"446\"><strong data-end=\"454\" data-start=\"446\">NaOH<\/strong> và <strong data-end=\"468\" data-start=\"458\">Na2CO3<\/strong>: c\u1ea3 hai axit \u0111\u1ec1u ph\u1ea3n \u1ee9ng t\u1ea1o mu\u1ed1i → không phân bi\u1ec7t \u0111\u01b0\u1ee3c.<\/p><\/li><\/ul>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-07-30 23:27:27","option_type":"txt","len":2}]}
