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101年 - 101 學士後西醫:有機化學#27197
> 試題詳解
9. What is the formal charge on the nitrogen atom indicated with the arrow in the following compound?
(A) 0
(B) −1
(C) +1
(D) −2
(E) +2
答案:
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統計:
A(0), B(4), C(31), D(1), E(1) #941833
私人筆記 (共 1 筆)
養樂多(MT112、後中上榜)
2025/02/12
私人筆記#6713154
未解鎖
(共 2 字,隱藏中)
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其他試題
5. Which of the following Newman projections does not represent 2-methylhexane? (A) 1 (B) 2 (C) 3 (D) 4 (E) both 2 and 3
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6. 2,3-Dibromobutane can exist three stereoisomers as shown below. What stereoisomers would be formed by the following reaction? (A) 1 only (B) 2 only (C) 3 only (D) 1 and 2 (E) 2 and 3
#941830
7. In the following structures, the protons pointed by arrow (on C2) which belong to diastereotopic hydrogens. (A)(B)(C) (D) (E) None of the above.
#941831
8. What is the correct IUPAC systematic name for the following compound? (A) 1,2-Dichlorocyclohexene (B) 2,3-Dichlorocyclohexene (C) 1,6-Dichlorocyclohexene (D) 1,2-Dichloro-2-cyclohexene (E) None of the above.
#941832
10. Which of the following nucleophiles reacts with MeI in greatest rate in an aqueous solution? (A) Me (B) MeOH (C) HO (D) CH3CO2 (E) MeS
#941834
11. Which of the following compounds would have a greater dipole moment than you expect? (A)(B)(C)(D)(E) None of the above.
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12. Compound A: M+ = 86, IR absorption: 3400 cm-1, 13C NMR spectral data: Broadband-decoupled 13C NMR: δ 30.2, 31.9, 61.8, 114.7, 138.4, DEPT-90: δ138.4; DEPT-135: δ138.4, negative peaks at δ 30.2, 31.9, 61.8, 114.7. What is the structure of compound A?
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13. In the following, which one is the most acidic compound? (A) 1 (B) 2 (C) 3 (D) 4 (E) 2 = 3
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14. Compound I has a molecular formula C5H10O, and 1H-NMR data shown below: δ 0.95 (d, J = 7 Hz, 6H), 2.10 (s, 3H), 2.43 (m, 1H). What structure fits compound I?
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15. What is the coupling constant for the Ha and Hb protons in the 1 H NMR spectra of the following compound? (A) 0 Hz (B) 3 Hz (C) 7 Hz (D) 10 Hz (E) 15 Hz
#941839