{"common":{"save":0,"post_id":"8008","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8487","post_id":"8008","mon_id":"1159533","chapter_id":"1159574","question":"<p>Acetic acid tác d\u1ee5ng v\u1edbi k\u1ebdm gi\u1ea3i phóng khí:<\/p>","options":["<strong>A. <\/strong>hydrogen (H<span class=\"math-tex\">$_{2}$<\/span>)","<strong>B. <\/strong>hydrogen chloride (HCl)","<strong>C. <\/strong>hydrogen sulfide (H<span class=\"math-tex\">$_{2}$<\/span>S)","<strong>D.<\/strong> ammonia (NH<span class=\"math-tex\">$_{3}$<\/span>)"],"correct":"1","level":"2","hint":"<p>- Acetic acid là m\u1ed9t <strong>acid y\u1ebfu<\/strong>, nh\u01b0ng khi tác d\u1ee5ng v\u1edbi kim lo\u1ea1i nh\u01b0 k\u1ebdm (Zn), nó s\u1ebd t\u1ea1o ra mu\u1ed1i và gi\u1ea3i phóng m\u1ed9t lo\u1ea1i khí.<\/p><p>- Hãy suy ngh\u0129 v\u1ec1 lo\u1ea1i khí th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u1ea1o ra khi <strong>acid tác d\u1ee5ng v\u1edbi kim lo\u1ea1i<\/strong>.<\/p>","answer":"<p>\u0110áp án \u0111úng: <span style=\"color:#16a085;\"><strong>A. hydrogen (H<span class=\"math-tex\">$_{2}$<\/span>)<\/strong><\/span><\/p><p>- Ph\u1ea3n \u1ee9ng gi\u1eefa acetic acid (CH\u2083COOH) và k\u1ebdm (Zn) nh\u01b0 sau:<\/p><p> Zn + 2CH<span class=\"math-tex\">$_{3}$<\/span>COOH → Zn(CH<span class=\"math-tex\">$_{3}$<\/span>COO)<span class=\"math-tex\">$_{2}$<\/span> + H2↑<\/p><p>- Trong ph\u1ea3n \u1ee9ng này, k\u1ebdm ph\u1ea3n \u1ee9ng v\u1edbi acetic acid, t\u1ea1o ra mu\u1ed1i <strong>zinc acetate (Zn(CH\u2083COO)\u2082)<\/strong> và gi\u1ea3i phóng khí <strong>hydrogen (H\u2082)<\/strong>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2024-11-10 19:11:34","option_type":"math","len":0},{"id":"8488","post_id":"8008","mon_id":"1159533","chapter_id":"1159574","question":"<p>Acetic acid không ph\u1ea3n \u1ee9ng v\u1edbi ch\u1ea5t nào sau \u0111ây?<\/p>","options":["<strong>A.<\/strong> ZnO","<strong>B. <\/strong>CaCO<span class=\"math-tex\">$_{3}$<\/span>","<strong>C.<\/strong> MgCl<span class=\"math-tex\">$_{2}$<\/span>","<strong>D. <\/strong>NaOH"],"correct":"3","level":"2","hint":"<p>Acetic acid là m\u1ed9t <strong>axit y\u1ebfu<\/strong>, có th\u1ec3 ph\u1ea3n \u1ee9ng v\u1edbi <strong>baz\u01a1, oxit kim lo\u1ea1i<\/strong> và <strong>mu\u1ed1i cacbonat<\/strong>. Hãy th\u1eed suy ngh\u0129 xem, trong các ch\u1ea5t \u0111ã cho, ch\u1ea5t nào <strong>không ph\u1ea3i là baz\u01a1<\/strong> ho\u1eb7c <strong>không ch\u1ee9a ion OH\u207b<\/strong>, và c\u0169ng <strong>không có kh\u1ea3 n\u0103ng t\u1ea1o ra ph\u1ea3n \u1ee9ng hóa h\u1ecdc<\/strong> v\u1edbi acetic acid.<\/p>","answer":"<p>\u0110áp án \u0111úng: <span style=\"color:#16a085;\"><strong>C. MgCl<span class=\"math-tex\">$_{2}$<\/span><\/strong><\/span><\/p><p><strong>- Acetic acid (CH\u2083COOH)<\/strong> là m\u1ed9t axit y\u1ebfu và có th\u1ec3 ph\u1ea3n \u1ee9ng v\u1edbi:<\/p><p><strong>- ZnO (oxit k\u1ebdm):<\/strong> Ph\u1ea3n \u1ee9ng t\u1ea1o ra mu\u1ed1i acetate và n\u01b0\u1edbc. O<\/p><p><strong>- CaCO\u2083 (canxi cacbonat):<\/strong> Ph\u1ea3n \u1ee9ng t\u1ea1o ra khí CO\u2082, n\u01b0\u1edbc, và mu\u1ed1i acetate. <\/p><p><strong>- NaOH (natri hydroxide):<\/strong> Ph\u1ea3n \u1ee9ng trung hòa t\u1ea1o mu\u1ed1i và n\u01b0\u1edbc.<\/p><p><strong>- MgCl\u2082 (magie clorua):<\/strong> Không ph\u1ea3n \u1ee9ng v\u1edbi acetic acid vì không có ion OH\u207b và không t\u1ea1o ra k\u1ebft t\u1ee7a ho\u1eb7c khí v\u1edbi axit y\u1ebfu nh\u01b0 CH\u2083COOH.<\/p>","type":"choose","extra_type":"shape1","time":"0","user_id":"127","test":"0","date":"2024-11-10 19:16:48","option_type":"math","len":0},{"id":"8489","post_id":"8008","mon_id":"1159533","chapter_id":"1159574","question":"<p>Ch\u1ea5t nào sau \u0111ây không ph\u1ea3n \u1ee9ng \u0111\u01b0\u1ee3c v\u1edbi dung d\u1ecbch acetic acid?<\/p>","options":["<strong>A.<\/strong> NaOH","<strong>B.<\/strong> Cu","<strong>C.<\/strong> Zn","<strong>D. <\/strong>CaCO<span class=\"math-tex\">$_{3}$<\/span>"],"correct":"2","level":"2","hint":"<p>Axit th\u01b0\u1eddng ph\u1ea3n \u1ee9ng v\u1edbi các kim lo\u1ea1i ki\u1ec1m, kim lo\u1ea1i có tính kh\u1eed m\u1ea1nh và các mu\u1ed1i carbonat \u0111\u1ec3 t\u1ea1o ra s\u1ea3n ph\u1ea9m \u0111\u1eb7c tr\u01b0ng. Tuy nhiên, m\u1ed9t s\u1ed1 kim lo\u1ea1i không ph\u1ea3n \u1ee9ng v\u1edbi axit, \u0111\u1eb7c bi\u1ec7t là khi chúng có tính ch\u1ea5t không d\u1ec5 dàng b\u1ecb oxi hóa trong môi tr\u01b0\u1eddng axit.<\/p>","answer":"<p>\u0110áp án \u0111úng: <span style=\"color:#16a085;\"><strong>B. Cu<\/strong><\/span><\/p><p>\u0110\u1ed3ng không ph\u1ea3n \u1ee9ng v\u1edbi acetic acid trong \u0111i\u1ec1u ki\u1ec7n bình th\u01b0\u1eddng, vì \u0111\u1ed3ng không d\u1ec5 b\u1ecb oxi hóa b\u1edfi axit y\u1ebfu nh\u01b0 acetic acid.<\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"127","test":"0","date":"2024-11-10 19:38:52","option_type":"math","len":0}]}