112年 - [無官方正解]112 國立嘉義大學_碩士班招生考試試題_應用化學系：綜合化學-有機化學#144358

1. Which of the following structures is 2-methylpentane?
(A) CH₃CH₂CH₂CH₂CH₃ (B)(C)  (D) (E) CH₃CH₂CHCH₃ | CH₃

2. What is the product for the reaction below?


(A)
(B)

(C)



(D)
(E) none of these

3. What is the product of the following reaction?

(A)

(B)(C) (D)(E)

4. When (S)-3-bromo-1-butene is treated with HBr, two stereoisomeric products form. What is the relationship of these two products?
(A) enantiomers
(B) diastereomers
(C) meso compounds
(D) racemic mixture
(E)cis/trans

5. The major product of the reaction below is:
(A) (B)(C)(D)(E)

6. What is the final product of the following sequence of reactions?


(A)(B) (C)(D)
 (E)

7. Which hydrogens in the following compound will be exchanged most rapidly for deuterium upon reaction with D₂O and NaOD?

(A) H₁
(B) H₂
(C) H₃
(D) H₄
(E) H₅

8. The following compound will have a proton NMR spectrum that shows:

(A) two singlets, area ratio 3:1.
(B) two singlets, area ratio 9:1.
(C) three singlets, area ratio 3:3:6.
(D) four singlets, area ratio 3:2:6:1.
(E) six singlets, area ratio 3:3:3:1:1:1.

9. The product of the reaction sequence

(A)
(B)

(C)

(D)

(E) none of the above

10. When methylamine (CH₃NH₂) reacts with methyl bromide (CH₃Br) to give dimethylamine,
the methylamine:
(A) acts as an electrophile
(B) acts as a Lewis acid
(C) acts as a Bronsted-Lowry acid
(D) acts as a Bronsted-Lowry base
(E) acts as a nucleophile in an S_N2 reaction

11. Please rank the acidity of the following four compounds, from most acidic to less acidic. (5points)(A)CH₃CH₂OH(B) (C) (D) (E)CH₃CH₂CH₃