{"common":{"save":0,"post_id":"10025","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8877","post_id":"10025","mon_id":"1160346","chapter_id":"1158865","question":"<p data-pm-slice=\"0 0 []\">Ch\u1ecdn phát bi\u1ec3u \u0111úng<\/p>","options":["A. Ch\u1ea5t gi\u1eb7t r\u1eeda \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t t\u1eeb tinh b\u1ed9t.","B. Ch\u1ea5t gi\u1eb7t r\u1eeda là nh\u1eefng ch\u1ea5t có tác d\u1ee5ng làm s\u1ea1ch các v\u1ebft b\u1ea9n trên b\u1ec1 m\u1eb7t v\u1eadt r\u1eafn.","C. Ch\u1ea5t gi\u1eb7t r\u1eeda là nh\u1eefng ch\u1ea5t khi dùng cùng v\u1edbi n\u01b0\u1edbc có tác d\u1ee5ng làm s\u1ea1ch các v\u1ebft b\u1ea9n bám trên các v\u1eadt r\u1eafn. ","D. Ch\u1ea5t gi\u1eb7t r\u1eeda là nh\u1eefng ch\u1ea5t khi dùng cùng v\u1edbi n\u01b0\u1edbc có tác d\u1ee5ng làm s\u1ea1ch các v\u1ebft b\u1ea9n bám trên các v\u1eadt r\u1eafn mà không gây ra ph\u1ea3n \u1ee9ng hóa h\u1ecdc v\u1edbi các ch\u1ea5t \u0111ó."],"correct":"3","level":"1","hint":"<p>Hãy chú ý \u0111\u1ebfn <strong data-end=\"74\" data-start=\"36\">tác d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a ch\u1ea5t gi\u1eb7t r\u1eeda<\/strong> và \u0111i\u1ec1u ki\u1ec7n \u0111\u1ec3 chúng phát huy hi\u1ec7u qu\u1ea3.<\/p>","answer":"<p>\u0110áp án: <span style=\"color:#16a085;\"><strong>C. Ch\u1ea5t gi\u1eb7t r\u1eeda là nh\u1eefng ch\u1ea5t khi dùng cùng v\u1edbi n\u01b0\u1edbc có tác d\u1ee5ng làm s\u1ea1ch các v\u1ebft b\u1ea9n bám trên các v\u1eadt r\u1eafn.<\/strong><\/span><\/p><p data-end=\"337\" data-start=\"148\">Ch\u1ea5t gi\u1eb7t r\u1eeda (xà phòng, ch\u1ea5t t\u1ea9y r\u1eeda t\u1ed5ng h\u1ee3p) ch\u1ec9 phát huy tác d\u1ee5ng khi <strong data-end=\"260\" data-start=\"249\">có n\u01b0\u1edbc<\/strong>, giúp lo\u1ea1i b\u1ecf v\u1ebft b\u1ea9n bám trên b\u1ec1 m\u1eb7t v\u1eadt r\u1eafn nh\u1edd kh\u1ea3 n\u0103ng nh\u0169 hóa d\u1ea7u m\u1ee1.<\/p><ul data-end=\"508\" data-is-last-node=\"\" data-is-only-node=\"\" data-start=\"338\"> <li data-end=\"372\" data-start=\"338\"><p data-end=\"372\" data-start=\"340\">A sai: không ph\u1ea3i t\u1eeb tinh b\u1ed9t.<\/p><\/li> <li data-end=\"415\" data-start=\"373\"><p data-end=\"415\" data-start=\"375\">B thi\u1ebfu \u0111i\u1ec1u ki\u1ec7n "khi dùng v\u1edbi n\u01b0\u1edbc".<\/p><\/li> <li data-end=\"508\" data-is-last-node=\"\" data-start=\"416\"><p data-end=\"508\" data-is-last-node=\"\" data-start=\"418\">D sai: ch\u1ea5t gi\u1eb7t r\u1eeda <strong data-end=\"475\" data-start=\"439\">có th\u1ec3 tham gia ph\u1ea3n \u1ee9ng hóa h\u1ecdc<\/strong> (ví d\u1ee5 xà phòng hóa ch\u1ea5t béo).<\/p><\/li><\/ul>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-09-08 14:55:38","option_type":"txt","len":3},{"id":"8878","post_id":"10025","mon_id":"1160346","chapter_id":"1158865","question":"<p data-pm-slice=\"0 0 []\">Tác d\u1ee5ng c\u1ee7a ch\u1ea5t gi\u1eb7t r\u1eeda t\u1ed5ng h\u1ee3p gi\u1ed1ng v\u1edbi<\/p>","options":["A. acid.","B. xà phòng.","C. n\u01b0\u1edbc. ","D. base."],"correct":"2","level":"1","hint":"<p>Hãy nh\u1edb ch\u1ea5t gi\u1eb7t r\u1eeda t\u1ed5ng h\u1ee3p (b\u1ed9t gi\u1eb7t, n\u01b0\u1edbc r\u1eeda chén…) c\u0169ng có \u0111\u1ea7u \u01b0a n\u01b0\u1edbc, \u0111uôi k\u1ecb n\u01b0\u1edbc gi\u1ed1ng m\u1ed9t lo\u1ea1i mu\u1ed1i.<\/p>","answer":"<p>\u0110áp án:<span style=\"color:#16a085;\"> <strong>B. xà phòng.<\/strong><\/span><\/p><p>Gi\u1ea3i thích: C\u1ea3 <strong data-end=\"233\" data-start=\"221\">xà phòng<\/strong> và <strong data-end=\"263\" data-start=\"237\">ch\u1ea5t gi\u1eb7t r\u1eeda t\u1ed5ng h\u1ee3p<\/strong> \u0111\u1ec1u có c\u1ea5u t\u1ea1o l\u01b0\u1ee1ng c\u1ef1c: \u0111\u1ea7u phân c\u1ef1c tan trong n\u01b0\u1edbc và \u0111uôi hi\u0111rocacbon k\u1ecb n\u01b0\u1edbc, giúp nh\u0169 hóa và t\u1ea9y r\u1eeda d\u1ea7u m\u1ee1. Vì v\u1eady, tác d\u1ee5ng c\u1ee7a chúng gi\u1ed1ng nhau.<\/p>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-09-08 23:28:08","option_type":"txt","len":2},{"id":"8879","post_id":"10025","mon_id":"1160346","chapter_id":"1158865","question":"<p data-pm-slice=\"0 0 []\">Xà phòng \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ebf b\u1eb1ng cách<\/p>","options":["A. Th\u1ee7y phân saccharose.","B. Th\u1ee7y phân m\u1ee1 trong ki\u1ec1m.","C. Ph\u1ea3n \u1ee9ng c\u1ee7a acid v\u1edbi kim lo\u1ea1i. ","D. Ph\u1ea3n \u1ee9ng ester hoá"],"correct":"2","level":"1","hint":"<p data-end=\"127\" data-start=\"21\">Hãy nh\u1edb ph\u1ea3n \u1ee9ng xà phòng hóa là gì: ch\u1ea5t béo (trieste c\u1ee7a glycerol) b\u1ecb th\u1ee7y phân trong môi tr\u01b0\u1eddng ki\u1ec1m.<\/p>","answer":"<p>\u0110áp án: <strong>B. Th\u1ee7y phân m\u1ee1 trong ki\u1ec1m.<\/strong><\/p><p>Gi\u1ea3i thích: Xà phòng là mu\u1ed1i natri ho\u1eb7c kali c\u1ee7a acid béo, \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ebf b\u1eb1ng cách <strong data-end=\"330\" data-start=\"296\">\u0111un nóng ch\u1ea5t béo v\u1edbi NaOH\/KOH<\/strong> (th\u1ee7y phân ki\u1ec1m). S\u1ea3n ph\u1ea9m là xà phòng và glycerol.<\/p>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-09-08 23:28:52","option_type":"txt","len":2}]}