阿摩線上測驗
登入
首頁
>
學士後西醫-化學
>
97年 - 學士後西醫化學97化學#78689
> 試題詳解
16. Which alkene has the lowest heat of hydrogenation ΔH°
hydrog
?
(A)
(B)
(C)
(D)
(E)
答案：
登入後查看
統計：
A(2), B(1), C(1), D(1), E(3) #2055433
私人筆記 (共 1 筆)
Erato Shen
2024/12/07
私人筆記#6563391
未解鎖
氫化熱是指斷鍵時釋放的能量，結構愈穩定，...
(共 64 字，隱藏中）
前往觀看
1
0
其他試題
12. Which of the haloalkanes below would you expect to most rapidly undergo the reaction shown? (A) CH3CH2Br (B) (C) (CH3)3CBr (D) (CH3)2CHBr (E) (CH3) 3CCH2Br
#2055429
13. A mixture of oct-1-yne, oct-2-yne, and oct-3-yne was hydrogenated in the presence of a platinum catalyst until hydrogen uptake ceased. If one assumes that the hydrogenation went to completion, how many different eight-carbon hydrocarbons were produced? (A) 1 (B) 2 (C) 3 (D) 6 (E) 8
#2055430
14. Which of the following would you expect to have the lowest boiling point? (A) CH3CH2OH (B) CH3CO2H (C) CH3CH2OCH2CH3 (D) (CH3CH2)2NH (E) (CH3CH2)3N
#2055431
15. Which of the following structures, would be classified as anti-aromatic? (A) (B) (C) (D) (E) all of the above
#2055432
17. Which of the following alkyl halides would be suitable to use when forming a Grignard reagent? (A) BrCH2CH2CH2CN (B) CH3COCH2CH2Br (C) (CH3) 2NCH2CH2Br (D) H2NCH2CH2Br (E) all of the above
#2055434
18. Rank the following aromatics in order of decreasing reactivity toward electrophilic aromatic substitution (most reactive ＞ least reactive). (A)A ＞ C ＞ D ＞ B (B) D ＞ C ＞ A ＞ B (C) B ＞ C ＞ A ＞ D (D) D ＞ A ＞ C ＞ B (E) C ＞ A ＞ D ＞ B
#2055435
19. Which of the following resonance structures is the most stable? (A) (B) (C) (D) (E)
#2055436
20. Rank the following in order of decreasing acidity (more acidic ＞ less acidic): (A) II ＞ III ＞ I ＞ IV ＞ V (B) IV ＞ II ＞ I ＞ III ＞ V (C) II ＞ IV ＞ I ＞ III ＞ V (D) V ＞ III ＞ I ＞ II ＞ IV (E) II ＞ IV ＞ I ＞ V ＞ III
#2055437
21. How would you rank the following in decreasing order of reactivity toward nucleophilic aromatic substitution? (most reactive on left) (A) 4 ＞ 1 ＞ 3 ＞ 2 (B) 2 ＞ 3 ＞ 1 ＞ 4 (C) 3 ＞ 2 ＞ 4 ＞ 1 (D) 1 ＞ 3 ＞ 2 ＞ 4 (E) impossible to predict
#2055438
22. When you do an optical-resolution experiment of racemic mandelic acid you have to choice the reagent “________” theoretically. (A) pure achiral alcohol (B) pure racemic alcohol (C) pure (S)-amine (D) pure racemic amine (E) pure achiral amine
#2055439
阿摩線上測驗
登入