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105年 - 105 學士後西醫:有機化學#78642
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7. Which of these substances contains both covalent and ionic bonds?
(A) HN
3
(B) NH
4
Cl
(C) H
2
O
2
(D) XeF
2
(E) PCl
5
答案:
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統計:
A(0), B(42), C(0), D(1), E(0) #2053804
私人筆記 (共 2 筆)
涵涵(邀請碼107252)
2023/03/03
私人筆記#4920914
未解鎖
(B) NH4Cl contains b...
(共 403 字,隱藏中)
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4
0
Hsuan #AI筆記
2025/11/03
私人筆記#7536149
未解鎖
(共 0 字,隱藏中)
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3. Which two have the same molecular geometry? (A) I, II (B) III, IV (C) I, V (D) II, V (E) IV, V
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5. Rank the acidity of the following compounds. (A) I > IV > III > II (B) I > III > IV > II (C) IV > II > I > III (D) II > I > IV > III (E) None of the above.
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6. What is the order of increasing acidity for the following compounds? (A) IV < I < II < III (B) III < II < I < IV (C) III < II < IV < I (D) IV < II < I < III (E) I < IV < II < III
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8. Choose the correct product of the following reaction? (A) (B) (C) (D) (E)
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10. There are some isomers of 4-t-butylcyclhexane-1,3-diol. Which isomer reacts readily with acetone and an acid catalyst to form an acetal, but other stereoisomers do not react? (A) (B) (C) (D) (E)
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11. Which of the following correctly describes a molecule that is achiral? (A) Non-superimposability of the molecule on its mirror image (B) Superimposability of the molecule on its mirror image (C) Contains a carbon atom with four different substituents (D) Does not have a plane of symmetry (E) Both {B} and {D}.
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12. Which of the following pairs are enantiomers? (A) II, IV (B) I, III (C) I, II, III (D) I, II, V (E) I, III, V
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13. Consider the two energy diagrams Fig. I and Fig. II given below. Which of the following is correct with respect to these diagrams? (A) Fig. I represents an SN2 reaction (B) Fig. II represents an SN1 reaction (C) Fig. II represents an SN2 reaction (D) Fig. I represents an SN1 reaction (E) Both {C} and {D}.
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