57. Which of the following compounds is a hydrazone?
(A)
(B)
(C)
(D)
(E)

15. What is the correct assignment of the names of the functional groups in the following nitrogen-containing compounds? (A) I = amide II = amine III = oxime (B) I = imine II = oxime III = hydrazone (C) I = amine II = oxime III = hydrazine (D) I = imine II = hydrazone III = amine (E) I = hydrazine II = hydrazone III = oxime

34. Ninhydrin can rapid react with a certain type of functional group to produce an intense purple color (positive result). Which of the following compound can get positive result after ninhydrin test?

23. 下列何者為反應的最終產物？ (A) (B) (C) (D) (E)

2. Ninhydrin is the hydrate of a triketone and is in equilibrium with it.In the following statements which one is TRUE? (A) Ninhydrin is a good reagent for testing α-amino acids, usually carried out at acidic condition. (B) The positive ninhydrin test usually exhibits an intense purple color. (C) Ninhydrin is a good reagent for testing nucleosides, usually carried out at basic condition. (D) The positive ninhydrin test usually exhibits a red color. (E) The positive ninhydrin test usually exhibits a green color.

56. What reactants would be required to prepare the oxime shown below? (A) (B) (C) (D) (E) None of these reactants

16. 下列化合物中，何者與 CH3NH2 反應後的產物為 CH3CH2CH2CH=NCH3？ (A) CH3CH2CH2CHO (B) CH3CH2CH2COOH (C) CH3CH2CH2COOCH3 (D) CH3CH2CH2CONH2 (E) CH3CH2CH2C≡N

22-Which of the following is also known as a Schiff base? (A) an imine (B) a cyanohydrin (C) a hydrate (D) sodium hydroxide (E) an aldehyde

23. What is the major organic product obtained from the following reaction? (A) 1 (B) 2 (C) 3 (D) 4 (E) 5

44. Ninhydrin與α-amino acid反應如下，得到的紫色產物？

36. Choose the structure that is not an intermediate or product of the following reaction. 

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