Ôn tập chương 5

Home Lớp 11 Hoá học Lớp 11 - Sách Kết nối tri thức Bài 22: Ôn tập chương 5Bài tập cơ bản

{"common":{"save":0,"post_id":"9692","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8443","post_id":"9692","mon_id":"1159892","chapter_id":"1160172","question":"Kh\u1eb3ng \u0111\u1ecbnh nào d\u01b0\u1edbi \u0111ây không \u0111úng?<\/p>","options":["A. H\u1ea7u h\u1ebft các alcohol \u0111\u1ec1u nh\u1eb9 h\u01a1n n\u01b0\u1edbc","B. Alcohol tan t\u1ed1t trong n\u01b0\u1edbc do có nhóm OH t\u1ea1o liên k\u1ebft hydro v\u1edbi phân t\u1eed n\u01b0\u1edbc","C. Nhi\u1ec7t \u0111\u1ed9 sôi c\u1ee7a alcohol cao h\u01a1n nhi\u1ec7t \u0111\u1ed9 sôi c\u1ee7a ether, aldehyde ","D. Phenol tan t\u1ed1t trong n\u01b0\u1edbc do c\u0169ng có nhóm OH trong phân t\u1eed."],"correct":"4","level":"1","hint":"\u0110\u1ecdc k\u1ef9 các kh\u1eb3ng \u0111\u1ecbnh, so sánh v\u1edbi lý thuy\u1ebft tính ch\u1ea5t c\u1ee7a alcohol. Xác \u0111\u1ecbnh m\u1ec7nh \u0111\u1ec1 trái ng\u01b0\u1ee3c ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n \u0111\u1ec3 ch\u1ecdn.<\/p>","answer":"\u0110áp án: D. Phenol tan t\u1ed1t trong n\u01b0\u1edbc do c\u0169ng có nhóm OH trong phân t\u1eed.<\/strong><\/span><\/p>Dù có nhóm –OH, phenol tan kém trong n\u01b0\u1edbc<\/strong> (ít tan) vì nhân benzene (vòng th\u01a1m) k\u1ef5 n\u01b0\u1edbc, làm gi\u1ea3m \u0111\u1ed9 tan. Phenol tan ~8g\/100ml n\u01b0\u1edbc \u1edf 20°C – không ph\u1ea3i “tan t\u1ed1t”.<\/p>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-07-21 12:08:42","option_type":"txt","len":3},{"id":"8444","post_id":"9692","mon_id":"1159892","chapter_id":"1160172","question":"Alcohol no, \u0111\u01a1n ch\u1ee9c có 10 nguyên t\u1eed H trong phân t\u1eed có s\u1ed1 \u0111\u1ed3ng phân là<\/p>","options":["A. 5.","B. 3.","C. 4. ","D. 2."],"correct":"3","level":"1","hint":"Alcohol no \u0111\u01a1n ch\u1ee9c có 10 H \u1ee9ng v\u1edbi công th\u1ee9c CnH2n+1OH. Tìm giá tr\u1ecb n phù h\u1ee3p r\u1ed3i v\u1ebd các \u0111\u1ed3ng phân m\u1ea1ch.<\/p>","answer":"\u0110áp án: C. 4.<\/strong><\/span><\/p><h4 data-end=\"677\" data-start=\"624\">Các \u0111\u1ed3ng phân alcohol no \u0111\u01a1n ch\u1ee9c c\u1ee7a C\u2084H\u2081\u2080O là:<\/h4><ol data-end=\"848\" data-start=\"679\"> <li data-end=\"718\" data-start=\"679\">CH\u2083–CH\u2082–CH\u2082–CH\u2082OH<\/strong> (butan-1-ol)<\/p><\/li> <li data-end=\"759\" data-start=\"719\">CH\u2083–CH\u2082–CH(OH)–CH\u2083<\/strong> (butan-2-ol)<\/p><\/li> <li data-end=\"808\" data-start=\"760\">CH\u2083–CH(CH\u2083)–CH\u2082OH<\/strong> (2-methylpropan-1-ol)<\/p><\/li> <li data-end=\"848\" data-start=\"809\">(CH\u2083)\u2083C–OH<\/strong> (2-methylpropan-2-ol)<\/p><\/li><\/ol>\\n→ Có 4 \u0111\u1ed3ng phân alcohol no, \u0111\u01a1n ch\u1ee9c<\/strong>.<\/p>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-07-21 12:09:11","option_type":"txt","len":0},{"id":"8445","post_id":"9692","mon_id":"1159892","chapter_id":"1160172","question":"Tên qu\u1ed1c t\u1ebf c\u1ee7a h\u1ee3p ch\u1ea5t có công th\u1ee9c CH3CH(C2H5)CH(OH)CH3 là<\/p>","options":["A. 4-ethylpentan-2-ol.","B. 2-ethylbutan-3-ol.","C. 3-ethylhexan-5-ol. ","D. 3-methylpentan-2-ol."],"correct":"4","level":"1","hint":"Vi\u1ebft l\u1ea1i c\u1ea5u trúc m\u1ea1ch chính, \u0111ánh s\u1ed1 t\u1eeb \u0111\u1ea7u g\u1ea7n nhóm –OH. G\u1ecdi tên theo quy t\u1eafc IUPAC, chú ý v\u1ecb trí nhánh và –OH.<\/p>","answer":"\u0110áp án: D. 3-methylpentan-2-ol.<\/strong><\/span><\/p><ol data-end=\"457\" data-start=\"158\"> <li data-end=\"248\" data-start=\"158\">Xác \u0111\u1ecbnh m\u1ea1ch chính<\/strong>:<\/p> <ul data-end=\"248\" data-start=\"191\"> <li data-end=\"248\" data-start=\"191\">M\u1ea1ch chính dài nh\u1ea5t ch\u1ee9a nhóm –OH là pentan<\/strong> (5C).<\/p><\/li> <\/ul> <\/li> <li data-end=\"344\" data-start=\"250\">\u0110ánh s\u1ed1 m\u1ea1ch chính<\/strong>:<\/p> <ul data-end=\"344\" data-start=\"282\"> <li data-end=\"344\" data-start=\"282\">\u0110ánh s\u1ed1 t\u1eeb phía g\u1ea7n nhóm –OH nh\u1ea5t → nhóm –OH n\u1eb1m \u1edf C2<\/strong>.<\/p><\/li> <\/ul> <\/li> <li data-end=\"407\" data-start=\"346\">Nhóm th\u1ebf<\/strong>:<\/p> <ul data-end=\"407\" data-start=\"368\"> <li data-end=\"407\" data-start=\"368\">\u1ede C3 có m\u1ed9t nhóm ethyl (–C\u2082H\u2085)<\/strong>.<\/p><\/li> <\/ul> <\/li> <li data-end=\"457\" data-start=\"409\">Tên g\u1ecdi<\/strong>: → 3-ethylpentan-2-ol<\/strong>.<\/p><\/li><\/ol>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-07-21 12:09:42","option_type":"txt","len":2}]}