Alcohol - dễ

Home Lớp 11 Hoá học Lớp 11 - Sách Kết nối tri thức Bài 20: AlcoholBài tập cơ bản

{"common":{"save":0,"post_id":"9678","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8383","post_id":"9678","mon_id":"1159892","chapter_id":"1160172","question":"H\u1ee3p ch\u1ea5t thu\u1ed9c lo\u1ea1i d\u1eabn xu\u1ea5t halogen c\u1ee7a hydrocarbon là<\/p>","options":["A. HIO4.","B. C3H3N","C. CH2BrCl.","D. C6H6O."],"correct":"3","level":"1","hint":"D\u1eabn xu\u1ea5t halogen là hydrocarbon có H b\u1ecb thay th\u1ebf b\u1edfi nguyên t\u1eed halogen. Nh\u1eadn di\u1ec7n ch\u1ea5t có g\u1ed1c hydrocarbon g\u1eafn tr\u1ef1c ti\u1ebfp v\u1edbi Cl, Br, I ho\u1eb7c F.<\/p>","answer":"\u0110áp án: C. CH2BrCl<\/span>.<\/strong><\/p>D\u1eabn xu\u1ea5t halogen c\u1ee7a hydrocarbon<\/strong> là h\u1ee3p ch\u1ea5t thu \u0111\u01b0\u1ee3c khi thay m\u1ed9t ho\u1eb7c nhi\u1ec1u nguyên t\u1eed hi\u0111ro trong phân t\u1eed hydrocarbon b\u1eb1ng nguyên t\u1eed halogen (F, Cl, Br, I).<\/p>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-07-18 10:24:52","option_type":"txt","len":1},{"id":"8384","post_id":"9678","mon_id":"1159892","chapter_id":"1160172","question":"Alcohol là nh\u1eefng h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 mà phân t\u1eed có ch\u1ee9a nhóm OH liên k\u1ebft tr\u1ef1c ti\u1ebfp v\u1edbi<\/p>","options":["A. nguyên t\u1eed carbon.","B. nguyên t\u1eed carbon không no. ","C. nguyên t\u1eed carbon no.","D. nguyên t\u1eed oxygen."],"correct":"3","level":"1","hint":"Alcohol là h\u1ee3p ch\u1ea5t có nhóm –OH g\u1eafn tr\u1ef1c ti\u1ebfp vào nguyên t\u1eed C. C này ph\u1ea3i là nguyên t\u1eed cacbon thu\u1ed9c m\u1ea1ch hydrocarbon, không ph\u1ea3i vòng th\u01a1m.<\/p>","answer":"\u0110áp án: C. nguyên t\u1eed carbon no.<\/strong><\/span><\/p>Ancol (Alcohol)<\/strong> là h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 có ch\u1ee9a nhóm hydroxyl (–OH)<\/strong> liên k\u1ebft tr\u1ef1c ti\u1ebfp v\u1edbi nguyên t\u1eed carbon no<\/strong> (t\u1ee9c là carbon ch\u1ec9 liên k\u1ebft \u0111\u01a1n, thu\u1ed9c m\u1ea1ch no – ankan).<\/p>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-07-18 10:25:44","option_type":"txt","len":2},{"id":"8385","post_id":"9678","mon_id":"1159892","chapter_id":"1160172","question":"H\u1ee3p ch\u1ea5t nào sau \u0111ây không ph\u1ea3i là alcohol?<\/p>","options":["A. CH2=CH-OH.","B. CH3CH2OH.","C. CH2=CH-CH2OH.","D. C6H5CH2¬OH."],"correct":"1","level":"1","hint":"So sánh danh sách, tìm h\u1ee3p ch\u1ea5t có nhóm –OH nh\u01b0ng không g\u1eafn tr\u1ef1c ti\u1ebfp vào C. \u0110ây là \u0111\u1eb7c \u0111i\u1ec3m phân bi\u1ec7t alcohol v\u1edbi phenol hay acid.<\/p>","answer":"\u0110áp án: A. CH2=CH-OH.<\/strong><\/span><\/p><ul> <li data-end=\"243\" data-start=\"94\">Nhóm –OH g\u1eafn tr\u1ef1c ti\u1ebfp vào nguyên t\u1eed carbon mang n\u1ed1i \u0111ôi<\/strong> (carbon không no<\/strong>) → \u0110ây là h\u1ee3p ch\u1ea5t enol<\/em><\/strong>, không ph\u1ea3i alcohol \u0111úng ngh\u0129a<\/strong>.<\/p><\/li> <li data-end=\"310\" data-start=\"247\">Enol không b\u1ec1n, th\u01b0\u1eddng chuy\u1ec3n hóa thành aldehyde ho\u1eb7c ketone.<\/p><\/li><\/ul>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-07-18 10:26:20","option_type":"txt","len":2}]}