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32. Assign R, S configurations to these molecules, respectively:
(A)R, S, S
(B)S, S, S
(C)R, R, R
(D)R, R, S
(E)S, S, R

答案：登入後查看
統計： A(4), B(1), C(0), D(3), E(3) #2275878

其他試題

28. Assign E or Z configuration to these alkenes, respectively: (A)E, Z, E (B)Z, E, Z (C)Z, Z, E (D)E, E, Z (E)Z, Z, Z

29. How many alkene products, including E,Z isomers, might be obtained by dehydration of 3-methyl-3-hexanol with aqueous sulfuric acid?(A)6 (B)5 (C)4 (D)3 (E)2

30. What product would you obtain from catalytic hydrogenation of this alkene,(CH3)2C＝CHCH2CH3? (A)1-methylpentane (B)2-methylpentane (C)4-methylpentane (D)1,2-dimethylpentane (E)3-methylpentane

31. Which of these compounds are chiral?(A)(2) (B)(1) (C)3 (D)1, 2 (E)1, 3

33. Which of these substances have a meso form, respectively? (1)2, 3-Dibromobutane,(2)2, 3-Dibromopentane, (3)2, 4-Dibromopentane. (A)1, 2 (B)1, 3 (C)2 (D)2, 3

34. Which reagent in the following compounds is more nucleophilic? (A)(CH3)2N- (B)(CH3)2NH (C)(CH3)3B (D)(CH3)3N (E)CH3NH2

35. Tell whether these reactions are SNl: (A)1, 2 (B)1, 3 (C)2, 3 (D)2 (E)3

36. How many nonequivalent kinds of protons are present in this compound, 2-methyl-1-butene? (A)1 (B)2 (C)3 (D)4 (E)5

37. Which of the following has the greatest Van der Waal’s attraction for other molecules of the same kind? (A)(B)(C)(D)(E)

38. Which of the following alkenes reacts with HCl at the slowest rate? (A)(B)(C)(D)(E)

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