{"common":{"save":0,"post_id":"8051","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8746","post_id":"8051","mon_id":"1159533","chapter_id":"1159587","question":"<p>Ch\u1ea5t X là m\u1ed9t gluxit có ph\u1ea3n \u1ee9ng th\u1ee7y phân: X + H<span class=\"math-tex\">$_{2}$<\/span>O → Y + Z. X có công th\u1ee9c phân t\u1eed nào sau \u0111ây?<\/p>","options":["<strong>A. <\/strong>Glucose","<strong>B.<\/strong> Tinh b\u1ed9t","<strong>C<\/strong>. Saccharose","<strong>D.<\/strong> Cellulose"],"correct":"3","level":"3","hint":"<p>Ch\u1ea5t X là m\u1ed9t glucid (gluxit) l\u1edbn, có kh\u1ea3 n\u0103ng th\u1ee7y phân \u0111\u1ec3 t\u1ea1o ra hai s\u1ea3n ph\u1ea9m Y và Z. M\u1ed9t trong các s\u1ea3n ph\u1ea9m th\u1ee7y phân này là m\u1ed9t monosaccharide quen thu\u1ed9c.<\/p>","answer":"<p>\u0110áp án \u0111úng: <span style=\"color:#16a085;\"><strong>C. Saccharose<\/strong><\/span><\/p><p><strong>- Glucose (A):<\/strong> \u0110ây là m\u1ed9t monosaccharide, không th\u1ec3 th\u1ee7y phân t\u1ea1o ra hai s\u1ea3n ph\u1ea9m. Lo\u1ea1i.<\/p><p><strong>- Tinh b\u1ed9t (B):<\/strong> \u0110ây là m\u1ed9t polysaccharide l\u1edbn, khi th\u1ee7y phân s\u1ebd t\u1ea1o nhi\u1ec1u phân t\u1eed glucose, không ch\u1ec9 hai s\u1ea3n ph\u1ea9m. Lo\u1ea1i.<\/p><p><strong>- Saccharose (C):<\/strong> \u0110ây là m\u1ed9t disaccharide (C\u2081\u2082H\u2082\u2082O\u2081\u2081), khi th\u1ee7y phân s\u1ebd t\u1ea1o ra <strong>glucose (Y)<\/strong> và <strong>fructose (Z)<\/strong>. \u0110úng.<\/p><p><strong>- Cellulose (D):<\/strong> \u0110ây là m\u1ed9t polysaccharide l\u1edbn, th\u1ee7y phân s\u1ebd t\u1ea1o ra nhi\u1ec1u phân t\u1eed glucose. Lo\u1ea1i.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2024-11-21 19:48:15","option_type":"txt","len":1},{"id":"8747","post_id":"8051","mon_id":"1159533","chapter_id":"1159587","question":"<p>Khi \u0111un nóng dung d\u1ecbch saccharose v\u1edbi dung d\u1ecbch acid, thu \u0111\u01b0\u1ee3c dung d\u1ecbch có ph\u1ea3n \u1ee9ng tráng g\u01b0\u01a1ng, do:<\/p>","options":["<strong>A.<\/strong> Saccharose chuy\u1ec3n thành maltose","<strong>B.<\/strong> Saccharose b\u1ecb th\u1ee7y phân thành glucose và fructose","<strong>C. <\/strong>Phân t\u1eed saccharose có kh\u1ea3 n\u0103ng tham gia ph\u1ea3n \u1ee9ng tráng g\u01b0\u01a1ng","<strong>D. <\/strong>Dung d\u1ecbch acid \u0111ó có kh\u1ea3 n\u0103ng ph\u1ea3n \u1ee9ng"],"correct":"2","level":"3","hint":"<p>Hãy chú ý \u0111\u1ebfn quá trình <strong>bi\u1ebfn \u0111\u1ed5i hóa h\u1ecdc c\u1ee7a saccharose<\/strong> khi \u0111un nóng v\u1edbi dung d\u1ecbch acid. \u0110i\u1ec1u này d\u1eabn \u0111\u1ebfn vi\u1ec7c t\u1ea1o ra các s\u1ea3n ph\u1ea9m có th\u1ec3 tham gia ph\u1ea3n \u1ee9ng tráng g\u01b0\u01a1ng.<\/p>","answer":"<p>\u0110áp án \u0111úng: <span style=\"color:#16a085;\"><strong>B. Saccharose b\u1ecb th\u1ee7y phân thành glucose và fructose<\/strong><\/span><\/p><p><strong>- Saccharose (C\u2081\u2082H\u2082\u2082O\u2081\u2081)<\/strong> không ph\u1ea3i là \u0111\u01b0\u1eddng kh\u1eed, nên b\u1ea3n thân nó <strong>không có kh\u1ea3 n\u0103ng tham gia ph\u1ea3n \u1ee9ng tráng g\u01b0\u01a1ng<\/strong>.<\/p><p>- Khi \u0111un nóng dung d\u1ecbch saccharose v\u1edbi dung d\u1ecbch acid (nh\u01b0 HCl ho\u1eb7c H\u2082SO\u2084 loãng), saccharose b\u1ecb th\u1ee7y phân, t\u1ea1o ra hai lo\u1ea1i monosaccharide: <strong>glucose (C\u2086H\u2081\u2082O\u2086)<\/strong> và <strong>fructose (C\u2086H\u2081\u2082O\u2086)<\/strong>.<\/p><p>- Trong hai s\u1ea3n ph\u1ea9m này, <strong>glucose là \u0111\u01b0\u1eddng kh\u1eed<\/strong>, có nhóm ch\u1ee9c aldehyde (-CHO) \u1edf d\u1ea1ng m\u1ea1ch h\u1edf, nên nó <strong>có kh\u1ea3 n\u0103ng tham gia ph\u1ea3n \u1ee9ng tráng g\u01b0\u01a1ng<\/strong>, t\u1ea1o ra b\u1ea1c kim lo\u1ea1i (Ag) trên b\u1ec1 m\u1eb7t \u1ed1ng nghi\u1ec7m.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2024-11-21 19:53:21","option_type":"txt","len":3},{"id":"8748","post_id":"8051","mon_id":"1159533","chapter_id":"1159587","question":"<p>Glucose có th\u1ec3 tác d\u1ee5ng v\u1edbi ch\u1ea5t nào sau \u0111ây?<\/p>","options":["<strong>A. <\/strong>Dung d\u1ecbch AgNO<span class=\"math-tex\">$_{3}$<\/span> trong NH<span class=\"math-tex\">$_{3}$<\/span>","<strong>B. <\/strong>Dung d\u1ecbch n\u01b0\u1edbc bromine","<strong>C. <\/strong>Dung d\u1ecbch n\u01b0\u1edbc vôi trong","<strong>D.<\/strong> Dung d\u1ecbch AgNO<span class=\"math-tex\">$_{3}$<\/span>"],"correct":"1","level":"3","hint":"<p>Glucose là m\u1ed9t monosaccharide có tính kh\u1eed. B\u1ea1n nên xem xét các ch\u1ea5t ph\u1ea3n \u1ee9ng có kh\u1ea3 n\u0103ng ph\u1ea3n \u1ee9ng v\u1edbi nhóm aldehyde trong phân t\u1eed glucose.<\/p>","answer":"<p>\u0110áp án \u0111úng: <span style=\"color:#16a085;\"><strong>A. Dung d\u1ecbch AgNO<span class=\"math-tex\">$_{3}$<\/span> trong NH<span class=\"math-tex\">$_{3}$<\/span><\/strong><\/span><\/p><p><strong>- Glucose<\/strong> (C<span class=\"math-tex\">$_{6}$<\/span>\u200bH<span class=\"math-tex\">$_{12}$<\/span>O<span class=\"math-tex\">$_{6}$<\/span>\u200b) là m\u1ed9t monosaccharide ch\u1ee9a nhóm ch\u1ee9c <strong>aldehyde<\/strong> (-CHO) và có tính ch\u1ea5t hóa h\u1ecdc \u0111\u1eb7c tr\u01b0ng c\u1ee7a nhóm này.<\/p><p><strong>- Tính kh\u1eed c\u1ee7a glucose:<\/strong> Glucose có th\u1ec3 b\u1ecb oxy hóa \u1edf nhóm -CHO thành nhóm -COOH, do \u0111ó nó ph\u1ea3n \u1ee9ng v\u1edbi các ch\u1ea5t oxy hóa nh\u1eb9.<\/p>","type":"choose","extra_type":"cloud","time":"0","user_id":"127","test":"0","date":"2024-11-21 19:55:50","option_type":"math","len":0}]}