阿摩線上測驗
登入
首頁
>
學士後西醫-有機化學
>
104年 - 104 學士後西醫：有機化學#27032
> 試題詳解
21. Which of the following pairs of structures are not resonance forms of the same compounds?
(A)
(B)
(C)
(D)
(E)
答案：
登入後查看
統計：
A(0), B(2), C(2), D(52), E(2) #937550
詳解 (共 1 筆)
Ciao
B1 · 2024/09/28
#6218377
D）互變異構（氫原子轉移使雙鍵互換）
0
0
私人筆記 (共 1 筆)
努力努力再努力
2019/05/22
私人筆記#1471473
未解鎖
共振結構之間的差異在於電子的安排，其原子...
(共 77 字，隱藏中）
前往觀看
1
0
其他試題
17. When H2NCH2CH2CH2CH2COCH3 is heated in the process of an acid catalyst, a reaction occurs. The major product is: (A) I (B) II (C) III (D) IV (E) V
#937546
18. p-Methoxybenzaldehyde can be prepared from anisole using the Gatterman-Koch formylation. What mixture of reagents is necessary for this process? (A) CO, HCl, AlCl3, CuCl (B) CO, SO3, H2SO4 (C) CO2, HCl, AlCl3 (D) CO2, SO3, H2SO4 (E) CO2, HNO3, H2SO4
#937547
19. Which of the following carbonyl compounds may be made from 1,3-dithiane? I. Methyl vinyl ketone II. 2-Pentanone III. 3,3-Dimethyl-2-butanone IV. 2-Phenylethanal (A) I and IV (B) II only (C) II and III (D) II and IV (E) III and IV
#937548
20. Predict the compound from the spectral data given. C9H10O2: 13C NMR, δ 18.06 (quartet), 45.40 (doublet), 127.32 (doublet), 127.55 (doublet), 128.61 (doublet), 139.70 (singlet), 180.98 (singlet); IR, broad 3500-2800, 1708 cm-1 (A) 3-Phenylproponic acid (B) 2-Phenylproponic acid (C) 2-(4-Methylphenyl)acetic acid (D) 2-(3-Methylphenyl)acetic acid (E) 2-(2-Methylphenyl)acetic acid
#937549
22. Which of the following Newman projection represents the most stable trans-1,2-dimethylcyclohexane? (A) (B) (C) (D) (E)
#937551
23. Which of the following structure represents (S)-L-alanine? (A) (B) (C) (D) (E)
#937552
24. Which of the following description(s) is(are) true for the following reaction? I: the solution of the products is optically active II: the products have stereocenters III: the products are meso compounds IV: the products are racemic mixture V: the reaction is enantioselective (A) V only (B) I and II (C) III and IV (D) II and V (E) II and IV
#937553
25. Disulfide linkages in proteins come from between: (A) two methionine residues (B) two cysteine residues (C) a cysteine residue and a methionine residue (D) a threonine residue and a cysteine residue (E) a methionine residue and a threonine residue
#937554
26. Which of the following represents the HOMO for the conjugated system in Leukotriene B4? (A) (B) (C) (D) (E)
#937555
27. Which of the following is the most stable conformation for cis-4-methyl-2-pentene? (A) (B) (C) (D) (E) All of the above
#937556
阿摩線上測驗
登入
阿摩線上測驗
登入
