{"common":{"save":0,"post_id":"9665","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8363","post_id":"9665","mon_id":"1159892","chapter_id":"1160172","question":"<p data-pm-slice=\"0 0 []\">Cho ph\u1ea3n \u1ee9ng gi\u1eefa but-1,3-diene và HBr \u1edf -800C (t\u1ec9 l\u1ec7 mol 1:1), s\u1ea3n ph\u1ea9m chính c\u1ee7a ph\u1ea3n \u1ee9ng là<\/p>","options":["A. CH3-CHBr-CH=CH2","B. CH3-CH=CH-CH2Br","C. CH2Br-CH2-CH=CH2 ","D. CH3-CH=CBr-CH3"],"correct":"1","level":"2","hint":"<p>Ph\u1ea3n \u1ee9ng 1,2- và 1,4-c\u1ed9ng có th\u1ec3 x\u1ea3y ra, nh\u01b0ng \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p \u01b0u tiên c\u1ed9ng 1,2.<br data-end=\"86\" data-start=\"83\" \/>S\u1ea3n ph\u1ea9m chính là d\u1eabn xu\u1ea5t c\u1ed9ng tr\u1ef1c ti\u1ebfp vào n\u1ed1i \u0111ôi ban \u0111\u1ea7u.<\/p>","answer":"<p>\u0110áp án: <span style=\"color:#16a085;\"><strong>A. CH3-CHBr-CH=CH2<\/strong><\/span><\/p><ul data-end=\"669\" data-start=\"186\"> <li data-end=\"354\" data-start=\"186\"><p data-end=\"232\" data-start=\"188\">Buta-1,3-\u0111ien có th\u1ec3 c\u1ed9ng HBr theo 2 ki\u1ec3u:<\/p> <ol data-end=\"354\" data-start=\"235\"> <li data-end=\"293\" data-start=\"235\"><p data-end=\"293\" data-start=\"238\"><strong data-end=\"251\" data-start=\"238\">C\u1ed9ng 1,2:<\/strong> HBr g\u1eafn vào C1 và C2 → CH\u2083–CHBr–CH=CH\u2082.<\/p><\/li> <li data-end=\"354\" data-start=\"296\"><p data-end=\"354\" data-start=\"299\"><strong data-end=\"312\" data-start=\"299\">C\u1ed9ng 1,4:<\/strong> HBr g\u1eafn vào C1 và C4 → CH\u2082Br–CH=CH–CH\u2083.<\/p><\/li> <\/ol> <\/li> <li data-end=\"611\" data-start=\"356\"><p data-end=\"369\" data-start=\"358\">Quy lu\u1eadt:<\/p> <ul data-end=\"611\" data-start=\"372\"> <li data-end=\"517\" data-start=\"372\"><p data-end=\"517\" data-start=\"374\">\u1ede <strong data-end=\"402\" data-start=\"376\">nhi\u1ec7t \u0111\u1ed9 th\u1ea5p (–80 °C)<\/strong> → ph\u1ea3n \u1ee9ng <strong data-end=\"431\" data-start=\"414\">theo \u0111\u1ed9ng h\u1ecdc<\/strong>, t\u1ea1o s\u1ea3n ph\u1ea9m <strong data-end=\"482\" data-start=\"446\">\u1ed5n \u0111\u1ecbnh h\u01a1n v\u1ec1 t\u1ed1c \u0111\u1ed9 hình thành<\/strong> → \u01b0u tiên s\u1ea3n ph\u1ea9m <strong data-end=\"514\" data-start=\"502\">c\u1ed9ng 1,2<\/strong>.<\/p><\/li> <li data-end=\"611\" data-start=\"520\"><p data-end=\"611\" data-start=\"522\">\u1ede <strong data-end=\"540\" data-start=\"524\">nhi\u1ec7t \u0111\u1ed9 cao<\/strong> → ph\u1ea3n \u1ee9ng <strong data-end=\"571\" data-start=\"552\">theo nhi\u1ec7t \u0111\u1ed9ng<\/strong>, \u01b0u tiên s\u1ea3n ph\u1ea9m b\u1ec1n h\u01a1n (c\u1ed9ng 1,4).<\/p><\/li> <\/ul> <\/li> <li data-end=\"669\" data-start=\"613\"><p data-end=\"669\" data-start=\"615\">V\u1eady \u1edf –80 °C: s\u1ea3n ph\u1ea9m chính là <strong data-end=\"666\" data-start=\"647\">CH\u2083–CHBr–CH=CH\u2082<\/strong>.<\/p><\/li><\/ul>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-07-15 20:56:32","option_type":"txt","len":2},{"id":"8364","post_id":"9665","mon_id":"1159892","chapter_id":"1160172","question":"<p data-pm-slice=\"0 0 []\">H\u1ee3p ch\u1ea5t nào d\u01b0\u1edbi \u0111ây \u0111\u01b0\u1ee3c dùng \u0111\u1ec3 t\u1ed5ng h\u1ee3p ra PVC:<\/p>","options":["A. CH2=CHCH2Cl","B. CH2=CHBr","C. C6H5Cl ","D. CH2=CHCl"],"correct":"4","level":"2","hint":"<p>PVC \u0111\u01b0\u1ee3c t\u1ea1o ra t\u1eeb ph\u1ea3n \u1ee9ng trùng h\u1ee3p m\u1ed9t monome ch\u1ee9a n\u1ed1i \u0111ôi và Cl.<br data-end=\"226\" data-start=\"223\" \/>Nh\u1edb l\u1ea1i tên monome quen thu\u1ed9c nh\u1ea5t dùng trong công nghi\u1ec7p nh\u1ef1a.<\/p>","answer":"<p>\u0110áp án:<span style=\"color:#16a085;\"> <strong>D. CH2=CHCl<\/strong><\/span><\/p><ul> <li data-end=\"220\" data-start=\"119\"><p data-end=\"220\" data-start=\"121\"><strong data-end=\"149\" data-start=\"121\">PVC (polyvinyl chloride)<\/strong> \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ebf b\u1eb1ng ph\u1ea3n \u1ee9ng <strong data-end=\"191\" data-start=\"178\">trùng h\u1ee3p<\/strong> h\u1ee3p ch\u1ea5t <strong data-end=\"219\" data-start=\"201\">vinyl chloride<\/strong>.<\/p><\/li> <li data-end=\"275\" data-start=\"221\"><p data-end=\"275\" data-start=\"223\">Công th\u1ee9c vinyl chloride: <strong data-end=\"261\" data-start=\"249\">CH\u2082=CHCl<\/strong> → (CH\u2082–CHCl)\u2099<\/p><\/li><\/ul>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-07-15 20:58:14","option_type":"txt","len":1},{"id":"8365","post_id":"9665","mon_id":"1159892","chapter_id":"1160172","question":"<p data-pm-slice=\"0 0 []\">\u0110\u1ed3ng phân d\u1eabn xu\u1ea5t halogen c\u1ee7a hydrocarbon no g\u1ed3m<\/p>","options":["A. \u0110\u1ed3ng phân v\u1ecb trí nhóm ch\u1ee9c và \u0111\u1ed3ng phân hình h\u1ecdc.","B. \u0110\u1ed3ng phân m\u1ea1ch carbon và \u0111\u1ed3ng phân v\u1ecb trí nhóm ch\u1ee9c.","C. \u0110\u1ed3ng phân hình h\u1ecdc và \u0111\u1ed3ng phân c\u1ea5u t\u1ea1o. ","D. \u0110\u1ed3ng phân nhóm ch\u1ee9c và \u0111\u1ed3ng phân c\u1ea5u t\u1ea1o."],"correct":"2","level":"2","hint":"<p>\u0110\u1ed3ng phân c\u1ee7a d\u1eabn xu\u1ea5t halogen g\u1ed3m \u0111\u1ed3ng phân m\u1ea1ch C và \u0111\u1ed3ng phân v\u1ecb trí.<br data-end=\"371\" data-start=\"368\" \/>M\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p còn có \u0111\u1ed3ng phân lo\u1ea1i halogen khác nhau.<\/p>","answer":"<p>\u0110áp án: <span style=\"color:#16a085;\"><strong>B. \u0110\u1ed3ng phân m\u1ea1ch carbon và \u0111\u1ed3ng phân v\u1ecb trí nhóm ch\u1ee9c.<\/strong><\/span><\/p><p>D\u1eabn xu\u1ea5t halogen c\u1ee7a hydrocarbon no là các h\u1ee3p ch\u1ea5t thu \u0111\u01b0\u1ee3c khi thay th\u1ebf m\u1ed9t hay nhi\u1ec1u nguyên t\u1eed H trong hydrocarbon no (ankane) b\u1eb1ng nguyên t\u1eed halogen (F, Cl, Br, I).<\/p>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-07-15 20:59:41","option_type":"txt","len":3}]}