Question 1

What is the IUPAC name for the following compound?

Accepted Answer

A)  2,4-dimethyl-6-heptanone 
B)  4,6-dimethyl-2-heptanone 
C)  4,6-dimethylheptanone 
D)  2,4-dimethylhexanal 
A)  2,4-dimethyl-6-heptanone 
B)  4,6-dimethyl-2-heptanone 
C)  4,6-dimethylheptanone 
D)  2,4-dimethylhexanal

Question 2

In an aldehyde or ketone, the term α-carbon is applied to which of the following?

Accepted Answer

A)  a terminal carbon atom 
B)  the carbon atom of the carbonyl group 
C)  a carbon atom which is directly adjacent to the carbonyl group 
D)  none of the above 
A)  a terminal carbon atom 
B)  the carbon atom of the carbonyl group 
C)  a carbon atom which is directly adjacent to the carbonyl group 
D)  none of the above

Question 3

Which of the following is most soluble in water?

Accepted Answer

A)  2-butanone 
B)  1-hydroxy-2-butanone 
C)  butanal 
D)  2,3-dihydroxybutanal 
A)  2-butanone 
B)  1-hydroxy-2-butanone 
C)  butanal 
D)  2,3-dihydroxybutanal

Question 4

What is the correct order of boiling points for the following compounds?

Accepted Answer

A)  A > B > C 
B)  C > B > A 
C)  B > A > C 
D)  A > C > B 
A)  A > B > C 
B)  C > B > A 
C)  B > A > C 
D)  A > C > B

Question 5

Which of the following has the highest boiling point?

Accepted Answer

A)  acetone 
B)  butane 
C)  ethyl methyl ether 
D)  2-propanol 
A)  acetone 
B)  butane 
C)  ethyl methyl ether 
D)  2-propanol

Question 6

Which of the following has the highest water solubility?

Accepted Answer

A)  butanal 
B)  1-butanol 
C)  1-hexanol 
D)  hexanal 
A)  butanal 
B)  1-butanol 
C)  1-hexanol 
D)  hexanal

Question 7

In the reduction of an unsaturated aldehyde or ketone using H2 in the presence of a transition metal catalyst, which of the following statements is true?

Accepted Answer

A)  Both the C=C and C=O bonds are reduced at the same rate. 
B)  The C=C bond is reduced more rapidly than the C=O bond. 
C)  The C=O bond is reduced more rapidly than the C=C bond. 
D)  Unsaturated aldehydes and ketones do not undergo reduction under these conditions. 
A)  Both the C=C and C=O bonds are reduced at the same rate. 
B)  The C=C bond is reduced more rapidly than the C=O bond. 
C)  The C=O bond is reduced more rapidly than the C=C bond. 
D)  Unsaturated aldehydes and ketones do not undergo reduction under these conditions.

Question 8

Examine the following structure.   Which of the following characterizes this structure?

Accepted Answer

A)  aldehyde 
B)  lacks α hydrogen atoms 
C)  forms an enol 
D)  will not form a hemiacetal 
E)  none of these 
A)  aldehyde 
B)  lacks α hydrogen atoms 
C)  forms an enol 
D)  will not form a hemiacetal 
E)  none of these

Question 9

In the name 2-methyl-2-propenal the numbers represent which of the following?

Accepted Answer

A)  the position of the methyl substituent and the position of the carbonyl group 
B)  the position of the methyl substituent and the position of the alkene double bond 
C)  the position of the carbonyl group and the position of the alkene double bond 
D)  None of the above, since the name does not correspond to a real compound. 
A)  the position of the methyl substituent and the position of the carbonyl group 
B)  the position of the methyl substituent and the position of the alkene double bond 
C)  the position of the carbonyl group and the position of the alkene double bond 
D)  None of the above, since the name does not correspond to a real compound.

Question 10

What is the correct order of boiling points for the following compounds?

Accepted Answer

A)  A > B > C 
B)  C > B > A 
C)  B > A > C 
D)  A > C > B 
A)  A > B > C 
B)  C > B > A 
C)  B > A > C 
D)  A > C > B

Question 11

Which functional group is found in ketones?

Accepted Answer

A)  −CHO 
B)  −CH2OH 
C)  −COOH 
D)  RCOR' 
A)  −CHO 
B)  −CH2OH 
C)  −COOH 
D)  RCOR'

Question 12

Which of the following has the highest boiling point?

Accepted Answer

A)  butane 
B)  propanal 
C)  ethyl methyl ether 
D)  1-propanol 
A)  butane 
B)  propanal 
C)  ethyl methyl ether 
D)  1-propanol

Question 13

Of the various OH groups in the following carbohydrate, how many are part of hemiacetal functional groups?

Accepted Answer

A)  0 
B)  1 
C)  2 
D)  3 
A)  0 
B)  1 
C)  2 
D)  3

Question 14

Which of the following compounds contain an acetal functional group?

Accepted Answer

A)  A and B only 
B)  B and C only 
C)  A and C only 
D)  A, B and C 
A)  A and B only 
B)  B and C only 
C)  A and C only 
D)  A, B and C

Question 15

Which functional group is found in aldehydes?

Accepted Answer

A)  −CHO 
B)  −CH2OH 
C)  −COOH 
D)  RCOR' 
A)  −CHO 
B)  −CH2OH 
C)  −COOH 
D)  RCOR'

Question 16

What is the IUPAC name of propyl tert-butyl ketone?

Accepted Answer

A)  4-octanone 
B)  2-methyl-4-heptanone 
C)  3-methyl-4-heptanone 
D)  2,2-dimethyl-3-hexanone 
A)  4-octanone 
B)  2-methyl-4-heptanone 
C)  3-methyl-4-heptanone 
D)  2,2-dimethyl-3-hexanone

Question 17

Which of the following oxidizing agents oxidizes aldehydes in the body?

Accepted Answer

A)  NADH 
B)  NAD+ 
C)  O2 
D)  none of these 
A)  NADH 
B)  NAD+ 
C)  O2 
D)  none of these

Question 18

Which of the following has the lowest boiling point?

Accepted Answer

A)  2-butanone 
B)  2-heptanone 
C)  2-hexanone 
D)  2-pentanone 
A)  2-butanone 
B)  2-heptanone 
C)  2-hexanone 
D)  2-pentanone

Question 19

What is the IUPAC name of the following compound?

Accepted Answer

A)  4-aldyltoluene 
B)  4-toluylaldehyde 
C)  1-methylbenzaldehyde 
D)  4-methylbenzaldehyde 
A)  4-aldyltoluene 
B)  4-toluylaldehyde 
C)  1-methylbenzaldehyde 
D)  4-methylbenzaldehyde

Question 20

What is produced by the reduction of pyruvate in the body under anaerobic conditions?

Accepted Answer

A)  acetate 
B)  acetyl CoA 
C)  lactate 
D)  pyruvate 
A)  acetate 
B)  acetyl CoA 
C)  lactate 
D)  pyruvate

Exam 17: Aldehydes and Ketones

What is the IUPAC name for the following compound?

In an aldehyde or ketone, the term α-carbon is applied to which of the following?

Which of the following is most soluble in water?

What is the correct order of boiling points for the following compounds?

Which of the following has the highest boiling point?

Which of the following has the highest water solubility?

In the reduction of an unsaturated aldehyde or ketone using H2 in the presence of a transition metal catalyst, which of the following statements is true?

Examine the following structure. Which of the following characterizes this structure?

In the name 2-methyl-2-propenal the numbers represent which of the following?

What is the correct order of boiling points for the following compounds?

Which functional group is found in ketones?

Which of the following has the highest boiling point?

Of the various OH groups in the following carbohydrate, how many are part of hemiacetal functional groups?

Which of the following compounds contain an acetal functional group?

Which functional group is found in aldehydes?

What is the IUPAC name of propyl tert-butyl ketone?

Which of the following oxidizing agents oxidizes aldehydes in the body?

Which of the following has the lowest boiling point?

What is the IUPAC name of the following compound?

What is produced by the reduction of pyruvate in the body under anaerobic conditions?

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In the reduction of an unsaturated aldehyde or ketone using H₂ in the presence of a transition metal catalyst, which of the following statements is true?