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100年 - 100 學士後西醫:有機化學#35480
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73. Which of the reactions below would not produce n-butylamine ?
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統計:
A(3), B(3), C(17), D(1), E(0) #1026958
詳解 (共 2 筆)
Ciao
B1 · 2025/03/07
#6324464
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大家加油! 邀請碼228480
B2 · 2025/12/11
#7228824
您好!這個問題要求判斷哪一個有機化學反...
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私人筆記 (共 1 筆)
范暐茹
2025/11/21
私人筆記#7577346
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1. Which of the following amines gives the correct order of base strengths? (A) aliphatic > ammonia > aromatic (B) aliphatic > aromatic > ammonia (C) aromatic > aliphatic > ammonia (D) aromatic > ammonia > aliphatic (E) ammonia > aromatic > aliphatic
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2. The structural formula for vitamin C is shown below, identified by H which is most acidic? (A) 1 (B) 2 (C) 3 (D) 4 (E) 5
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3. What term describes the structural relationship between (2R,3R,4S)-2,3,4-trichloroheptane and (2R,3R,4R)-2,3,4-trichloroheptane? (A) not isomers (B) constitutional isomers (C) enantiomers (D) diastereomers (E) conformers
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4. Rank the following sets of substituents in order of Cahn-Ingold-Prelog priorities from highest to lowest. Please pick the wrong order set. (A) -Cl, -S, -P, -H (B) -Br, -OH, -CH3, -H (C) -CO2H, CH2OH, -CH2NH2, -CN (D) -CH2OH, -CH=CH2, -CH2CH3, -CH3 (E) -CH2OCH3, -CN, -C≡CH, -CH2CH3
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5. Which of the following pair of structures represent the different enantiomers?
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6. Which of the following structure does not represent meso compounds? (A) I (B) II (C) III (D) IV (E) V
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7. Which of the statements below correctly describes an achiral molecule? (A) the molecule has a nonsuperimposable mirror image (B) the molecule exhibits optical activity when it interacts with plane-polarized light (C) the molecule has an enantiomer (D) the molecule might be a meso form (E) none of the above
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8. Name these groups (left to right) (A) sec-propyl, sec-butyl, isobutyl (B) isopropyl, isobutyl, sec-butyl (C) sec-propyl, tert-butyl, isobutyl (D) isopropyl, tert-butyl, isobutyl (E) isopropyl, tert-butyl, sec-butyl
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9. What compound is formed when 2,2-dimethyloxirane is treated with ethanol containing a trace of HCl? (A) 2-ethoxy-2-methyl-1-propanol (B) 1-ethoxy-2-methyl-2-propanol (C) 2-ethoxy-2-methyl-2-propanol (D) 2-ethoxy-1-butanol (E) 1-ethoxy-2-butanol
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10. Which of the following compounds gives a 1 H-NMR spectrum consisting of only two singlets? (A) CH3OCH2CH2OCH2CH3 (B) CH3OCH2CH2CH2CH2OH (C) CH3OC(CH3)2OCH3 (D) CH3OCH2CH(CH3)OCH3 (E) CH3CH2OCH2CH3
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