Author Question: What is the only a-amino acid that does not have a stereogenic carbon? A) glycine B) alanine C) ... (Read 102 times)

Bob-Dole · **on:** Aug 23, 2018

What is the only a-amino acid that does not have a stereogenic carbon?
A)
glycine
B)
alanine
C)
phenylalanine
D)
valine
E)
leucine

Question 2

What is the name of the following molecule?

A)
3-amino-3-phenylvaleric acid
B)
4-amino-4-methyl-4-phenylbutanoic acid
C)
4-amino-4-phenylpentanoic acid
D)
4-amino-4-phenyl-4-methylbutanoic acid
E)
2-amino-2-phenylbutanoic acid

Question 3

Which of the following molecules is a-aminopropanoic acid?
A)

D)

B)

E)

C)

Question 4

The structure of an L-aldotetrose that would give an optically inactive alditol upon reduction with sodium borohydride (NaBH₄) is:
A)

D)

B)

E)

C)

Question 5

An intermediate in the following glycoside hydrolysis is:

A)

D)

B)

E)

C)

Question 6

The product of the following reaction sequence is:

A)

D)

B)

E)

C)

Question 7

Which of the following reagents will oxidize an aldose to an aldaric acid?
A)
HNO₃
B)
Br₂, H₂O
C)
NaBH₄
D)
PCC
E)
Tollens' reagent

b614102004 · **Reply #1 on:** Aug 23, 2018

Answer to Question 1

a

Answer to Question 2

c

Answer to Question 3

b

Answer to Question 4

d

Answer to Question 5

c

Answer to Question 6

a

Answer to Question 7

a