Organic Chemistry II Quiz
I. True/False Questions 1 pt for the right answer but -1 pt for the wrong one
II.
1. 4-Nitrobenzoic acid more acidic than benzoic acid because the nitro group is electron
donating and helps to stabilize the negative charge. ( )
2. Ammonia can be protonated by acetic acid. ( )
II. Multiple Choice: Select all answers for each question (mark circles)
1 pt for the right answer but -1 pt for the wrong one
3. What is the purpose of a silyl ether?
A. As a use for silicon B. To protect ketones from organometallic reagents
C. To protect alcohols from organometallic reagents and other reagents
D. To prevent the formation of carboxylic acids
4.What reagent would be used to reduce an amide to an amine?
A. NaBH4 B. LiAlH(OtBu)3
C. LiAlH4 D. FeCl3
5.Which reagent would be used to reduce only the ketone in cyclopentenone?
A. Zn, HCl B. LiAlH4 C. H2 and Pd/C D. SnCl2, HCl
6. What is the product of the following reaction?
O
CH3MgBr (excess)
O
A. ketone B. aldehyde C. alcohol D. carboxylic acid
I. True/False Questions 1 pt for the right answer but -1 pt for the wrong one
II.
1. 4-Nitrobenzoic acid more acidic than benzoic acid because the nitro group is electron
donating and helps to stabilize the negative charge. ( )
2. Ammonia can be protonated by acetic acid. ( )
II. Multiple Choice: Select all answers for each question (mark circles)
1 pt for the right answer but -1 pt for the wrong one
3. What is the purpose of a silyl ether?
A. As a use for silicon B. To protect ketones from organometallic reagents
C. To protect alcohols from organometallic reagents and other reagents
D. To prevent the formation of carboxylic acids
4.What reagent would be used to reduce an amide to an amine?
A. NaBH4 B. LiAlH(OtBu)3
C. LiAlH4 D. FeCl3
5.Which reagent would be used to reduce only the ketone in cyclopentenone?
A. Zn, HCl B. LiAlH4 C. H2 and Pd/C D. SnCl2, HCl
6. What is the product of the following reaction?
O
CH3MgBr (excess)
O
A. ketone B. aldehyde C. alcohol D. carboxylic acid
