Ôn tập chương 6

Home Lớp 11 Hoá học Lớp 11 - Sách Kết nối tri thức Bài 25: Ôn tập chương 6Bài tập cơ bản

{"common":{"save":0,"post_id":"9798","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8544","post_id":"9798","mon_id":"1159892","chapter_id":"1160178","question":"Trong dãy \u0111\u1ed3ng \u0111\u1eb3ng alcohol no \u0111\u01a1n ch\u1ee9c no, khi m\u1ea1ch cacbon t\u0103ng, nói chung:<\/p>","options":["A. Nhi\u1ec7t \u0111\u1ed9 sôi t\u0103ng, kh\u1ea3 n\u0103ng tan trong n\u01b0\u1edbc t\u0103ng","B. Nhi\u1ec7t \u0111\u1ed9 sôi t\u0103ng, kh\u1ea3 n\u0103ng tan trong n\u01b0\u1edbc gi\u1ea3m","C. Nhi\u1ec7t \u0111\u1ed9 sôi gi\u1ea3m, kh\u1ea3 n\u0103ng tan trong n\u01b0\u1edbc t\u0103ng","D. Nhi\u1ec7t \u0111\u1ed9 sôi gi\u1ea3m, kh\u1ea3 n\u0103ng tan trong n\u01b0\u1edbc gi\u1ea3m"],"correct":"2","level":"1","hint":"","answer":"\u0110áp án: B. Nhi\u1ec7t \u0111\u1ed9 sôi t\u0103ng, kh\u1ea3 n\u0103ng tan trong n\u01b0\u1edbc gi\u1ea3m<\/strong><\/p>Trong dãy \u0111\u1ed3ng \u0111\u1eb3ng c\u1ee7a alcohol no \u0111\u01a1n ch\u1ee9c (ROH)<\/strong>:<\/p><ul data-end=\"593\" data-start=\"145\"> <li data-end=\"593\" data-start=\"145\">Khi m\u1ea1ch cacbon t\u0103ng d\u1ea7n<\/strong> (t\u1ee9c là t\u0103ng s\u1ed1 nguyên t\u1eed C):<\/p> <ul data-end=\"593\" data-start=\"208\"> <li data-end=\"383\" data-start=\"208\">Nhi\u1ec7t \u0111\u1ed9 sôi t\u0103ng<\/strong>: do phân t\u1eed r\u01b0\u1ee3u càng l\u1edbn thì l\u1ef1c liên k\u1ebft Van der Waals gi\u1eefa các phân t\u1eed càng l\u1edbn, c\u1ed9ng thêm liên k\u1ebft hydro gi\u1eefa các phân t\u1eed r\u01b0\u1ee3u → nhi\u1ec7t \u0111\u1ed9 sôi t\u0103ng.<\/p><\/li> <li data-end=\"593\" data-start=\"386\">Kh\u1ea3 n\u0103ng tan trong n\u01b0\u1edbc gi\u1ea3m<\/strong>: nhóm -OH có kh\u1ea3 n\u0103ng t\u1ea1o liên k\u1ebft hidro v\u1edbi n\u01b0\u1edbc nên làm r\u01b0\u1ee3u tan trong n\u01b0\u1edbc. Tuy nhiên, khi m\u1ea1ch C dài ra thì ph\u1ea7n k\u1ecb n\u01b0\u1edbc (\u0111uôi C–H) l\u1edbn d\u1ea7n, làm gi\u1ea3m \u0111\u1ed9 tan trong n\u01b0\u1edbc.<\/p><\/li> <\/ul> <\/li><\/ul>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-08-01 10:26:13","option_type":"txt","len":3},{"id":"8545","post_id":"9798","mon_id":"1159892","chapter_id":"1160178","question":"Công th\u1ee9c nào bi\u1ec3u th\u1ecb chính xác nh\u1ea5t công th\u1ee9c c\u1ee7a alcohol no, h\u1edf:<\/p>","options":["A. CnH2n+1OH","B. CnH2n+2O","C. CnH2n+2Om ","D. CnH2n+2-m (OH)m ( n ≥ m ≥ 1)"],"correct":"1","level":"1","hint":"","answer":"\u0110áp án: A. CnH2n+1OH<\/strong><\/p><ul> <li data-end=\"461\" data-start=\"383\">A. CnH2n+1OH<\/strong> → \u0110úng b\u1ea3n ch\u1ea5t<\/strong> nh\u1ea5t: nhóm ankyl + nhóm hydroxyl.<\/p><\/li> <li data-end=\"584\" data-start=\"463\">B. CnH2n+2O<\/strong> → \u0110úng v\u1ec1 phân t\u1eed kh\u1ed1i<\/strong>, nh\u01b0ng không th\u1ec3 hi\u1ec7n rõ nhóm OH<\/strong>, nên không \u0111\u1eb7c tr\u01b0ng<\/strong> cho ancol.<\/p><\/li> <li data-end=\"697\" data-start=\"586\">C. CnH2n+2Om<\/strong> → Sai, vì ancol no \u0111\u01a1n ch\u1ee9c ch\u1ec9 có 1 nguyên t\u1eed O<\/strong>, nên không \u0111úng v\u1edbi m\u1ecdi tr\u01b0\u1eddng h\u1ee3p.<\/p><\/li> <li data-end=\"788\" data-start=\"699\">D. CnH2n+2−m(OH)m<\/strong> → Bi\u1ec3u di\u1ec5n chung cho ancol \u0111a ch\u1ee9c<\/strong>, không ph\u1ea3i \u0111\u01a1n ch\u1ee9c.<\/p><\/li><\/ul>\\n","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-08-01 10:27:16","option_type":"txt","len":2},{"id":"8546","post_id":"9798","mon_id":"1159892","chapter_id":"1160178","question":"Ch\u1ea5t nào sau \u0111ây là ch\u1ea5t l\u1ecfng sánh, n\u1eb7ng h\u01a1n n\u01b0\u1edbc và có v\u1ecb ng\u1ecdt?<\/p>","options":["A. C12H25OH","B. C2H5","C. C6H5CH2OH ","D. CH2OH-CHOH-CH2OH"],"correct":"4","level":"1","hint":"","answer":"\u0110áp án: D. CH2OH-CHOH-CH2OH<\/strong><\/p>CH\u2082OH–CHOH–CH\u2082OH<\/strong> là công th\u1ee9c c\u1ee7a glycerol (glycerin)<\/strong>, m\u1ed9t ch\u1ea5t có các \u0111\u1eb7c \u0111i\u1ec3m sau:<\/p><ul data-end=\"325\" data-start=\"157\"> <li data-end=\"184\" data-start=\"157\">L\u1ecfng, sánh<\/strong> (h\u01a1i nh\u1edbt)<\/p><\/li> <li data-end=\"241\" data-start=\"185\">N\u1eb7ng h\u01a1n n\u01b0\u1edbc<\/strong> (kh\u1ed1i l\u01b0\u1ee3ng riêng kho\u1ea3ng 1,26 g\/cm³)<\/p><\/li> <li data-end=\"255\" data-start=\"242\">V\u1ecb ng\u1ecdt<\/strong><\/p><\/li> <li data-end=\"325\" data-start=\"256\">Tan t\u1ed1t trong n\u01b0\u1edbc<\/strong> do có 3 nhóm -OH<\/strong> t\u1ea1o liên k\u1ebft hydro m\u1ea1nh<\/p><\/li><\/ul>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-08-01 10:27:46","option_type":"txt","len":2}]}