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102年 - 102 學士後西醫:有機化學#27324
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28. Which of the following is the strongest nucleophile?
(A) NaOH
(B) NaOMe
(C) KOH
(D) KOMe
(E) KSMe
答案:
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統計:
A(1), B(2), C(0), D(3), E(31) #943156
詳解 (共 1 筆)
一起加油! 邀請碼228480
B1 · 2025/12/03
#7188044
要判斷哪一種物質的親核性 (Nucle...
(共 1794 字,隱藏中)
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私人筆記 (共 1 筆)
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2019/04/19
私人筆記#1394561
未解鎖
H2O→H+ + -OH ROH→H+...
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相關試題
30. Provide the major product for the following reaction ?(A) I (B) II (C) III (D) IV (E) V
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31. Predict the major product for the following reaction. (A) I (B) II (C) III (D) IV (E) I and II.
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32. Predict the major product for the following reaction. (A) I (B) II (C) III (D) IV (E) V
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33. Which of the alkynes below, after undergoing an acid-catalyzed hydration, would be expected to produce two different ketones in nearly equivalent yields? (A) 1-hexyne (B) 2-hexyne (C) 3-hexyne (D) 3-methyl-1-pentyne (E) 4-methyl-1-pentyne
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34. Predict the products of the following reaction: (A) I, III, and IV (B) II, III, and IV (C) I, III, and V (D) II, IV, and VI (E) III and IV
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35. Which of the following is a correct prediction of the chemical shifts (ppm) for the signals in the 1 H NMR spectrum for the following compound? (A) a = 5.7, b = 5.2, c = 4.4, d = 1.9 (B) a = 5.2, b = 5.7, c = 1.9, d = 4.4 (C) a = 4.4, b = 5.2, c = 1.9, d = 1.9 (D) a = 5.2, b = 4.4, c = 5.7, d = 1.9 (E) a = 1.9, b = 5.7, c = 5.2, d = 4.4
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36. Provide the name of the major alkene product that results when (2R,3R)-2,3-dibromopentane is treated with zinc in acetic acid. (A) (Z)-2-pentene (B) (E)-2-pentene (C) (R)-3-bromo-1-pentene (D) (S)-3-bromo-1-pentene (E) (R)-2-bromo-3-pentene
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37. What is the major expected product(s) of the reaction shown below? (A) 2,2-Dichloropentane (B) 3,3-Dichloropentane (C) 2,3-Dichloropentane (D) A and B (E) B and C
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38. What is the expected major organic product from treatment of 4-methyl-2-pentyne with hydrogen in the presence of Lindlar's catalyst? (A) (E)-4-methyl-2-pentene (B) (Z)-4-methyl-2-pentene (C) (E)-2-methyl-2-pentene (D) (Z)-2-methyl-2-pentene (E) 2-methylpentane
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39. Refer to the equilibrium below, the correct name for the cyclic structure is_______. (A) α-L-ribofuranose (B) β-D-ribofuranose (C) α-L-ribopyranose (D) β-D-ribopyranose (E) None of the above
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