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Unformatted text preview: K thi th i hc(2) ( Thi gian lm bi : 90 pht) S 20 1. M t anken (c 6 nguyn t C), ph n ng v i dung d ch KMnO 4 , trong mi tr ng axit, ch cho m t s n ph m oxi ha l CH 3- CO- CH 3 , anken l A. 2,3-imetyl-2-buten. B. 3-metyl-2-penten. C. isopren. D. trans-3-hexen. 2. Cho ph n ng sau: Mg + HNO 3 Mg(NO 3 ) 2 + NO + NO 2 + H 2 O N u t l s mol gi a NO v NO 2 l 2:1, th h s cn b ng t i gi n c a HNO 3 trong ph ng trnh ho h c l A. 12. B. 30. C. 18. D. 20. 3. i n phn dung d ch CuSO 4 n ng 0,5M v i i n c c tr trong th thu c 1 gam ng. i n l ng tiu t n t i thi u l A. 3015 C. B.2870 C. C.1212 C. D.2550 C. 4. C th i u ch b c kim lo i t dung d ch AgNO 3 b ng cch A. i n phn v i i n c c than ch. B. nhi t phn. C. i n phn v i i n c c Au. D. cho tc d ng v i kim lo i m nh nh canxi. 5. i n phn dung d ch CuSO 4 n ng 0,5M v i i n c c tr trong th thu c 1gam Cu. N u dng dng i n m t chi u c c ng 1A, th th i gian i n phn t i thi u l A. 50 pht 15 giy.B. 40 pht 15 giy. C. 0,45 gi . D. 0,65 gi . 6. Ph ng php th y luy n dng i u ch A. kim lo i c tnh kh y u. B. kim lo i m ion d ng c a n c tnh oxy ha y u. C. kim lo i ho t ng m nh. D. kim lo i c c p oxi ha-kh ng tr c Zn 2+ /Zn. 7. Ha tan m gam h n h p 2 mu i cacbonat kim lo i ha tr (I) v (II) b ng dung d ch HCl d thu c dung d ch A v V lt kh CO 2 (ktc). C c n dung d ch A thu c (m+3,3) gam mu i khan. Tnh V? A. 2,24 lt. B. 3,72 lt. C. 6,72 lt. D. 8,96 lt. 8. Cho cc ch t A (C 4 H 10 ), B (C 4 H 9 Cl), C (C 4 H 10 O), D (C 4 H 11 N). Nguyn nhn gy ra s tng s l ng cc ng phn t A n D l do A. ha tr c a cc nguyn t th tng l m tng th t lin k t trong phn t . B. m i n khc nhau c a cc nguyn t . C. cc bon c th t o nhi u ki u lin k t khc nhau. D. kh i l ng phn t khc nhau. 9. A v B l 2 axit cacboxylic n ch c. Tr n 1,2 gam A v i 5,18 gam B c h n h p X. trung ha h t X c n 90 ml dung d ch NaOH 1M....
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