Question 1

The oxygen atom in a carbonyl group is ________ the carbon atom.

Accepted Answer

A) more electronegative than 
B) less electronegative than 
C) identical in electronegativity to 
D) more electropositive than 
E) more soluble than 
A) more electronegative than 
B) less electronegative than 
C) identical in electronegativity to 
D) more electropositive than 
E) more soluble than A

Question 2

Acetone can be produced by the body when a person is

Accepted Answer

A) exercising. 
B) dieting with high protein diets. 
C) ill with a flu. 
D) recovering from surgery. 
E) sleeping. 
A) exercising. 
B) dieting with high protein diets. 
C) ill with a flu. 
D) recovering from surgery. 
E) sleeping. B

Question 3

How many carbonyl-containing isomers does the formula C3H6O have?

Accepted Answer

A) two 
B) three 
C) five 
D) seven 
E) eight 
A) two 
B) three 
C) five 
D) seven 
E) eight A

Question 4

Benedict's test can be used to determine whether an α-hydroxyaldehyde functional group is present.

Accepted Answer

A) True 
 B)False

Question 5

The product of adding two molecules of an alcohol to an aldehyde in the presence of acid is a(n)

Accepted Answer

A) acetal. 
B) ether. 
C) hemiacetal. 
D) hemiether. 
E) hydroxyl group. 
A) acetal. 
B) ether. 
C) hemiacetal. 
D) hemiether. 
E) hydroxyl group.

Question 6

The carbonyl group gives ketones lower boiling points than alkanes of similar mass.

Accepted Answer

A) True 
 B)False

Question 7

The hydrogenation of 2-methylpropanal gives the product

Accepted Answer

A) 1-butanol. 
B) 2-methylpropanoic acid. 
C) 2-methyl-3-propanol. 
D) 2-methyl-1-propanol. 
E) 2-methyl-2-propanol. 
A) 1-butanol. 
B) 2-methylpropanoic acid. 
C) 2-methyl-3-propanol. 
D) 2-methyl-1-propanol. 
E) 2-methyl-2-propanol.

Question 8

How many hydrogen atoms is the carbonyl group in a ketone bonded to?

Accepted Answer

A) none 
B) one 
C) two 
D) three 
E) four 
A) none 
B) one 
C) two 
D) three 
E) four

Question 9

Which molecule below has stereoisomers with different biological effects?

Accepted Answer

A) carvone 
B) nicotine 
C) LSD 
D) epinephrine 
E) All of the above. 
A) carvone 
B) nicotine 
C) LSD 
D) epinephrine 
E) All of the above.

Question 10

Excessive exposure to formaldehyde can irritate the eyes and respiratory tract.

Accepted Answer

A) True 
 B)False

Question 11

2-butanol is a chiral molecule.

Accepted Answer

A) True 
 B)False

Question 12

Acetone is a three-carbon aldehyde.

Accepted Answer

A) True 
 B)False

Question 13

The carbonyl group gives aldehydes higher boiling points than alkanes of similar mass.

Accepted Answer

A) True 
 B)False

Question 14

In the IUPAC naming system, a ketone is named by replacing the -e in the corresponding alkane name with

Accepted Answer

A) yne. 
B) ene. 
C) al. 
D) one. 
E) ol. 
A) yne. 
B) ene. 
C) al. 
D) one. 
E) ol.

Question 15

What is the IUPAC name for this compound?

Accepted Answer

A) methyl aldehyde 
B) 1-ethanaldehyde 
C) 1-ethanone 
D) ethanal 
E) methanal 
A) methyl aldehyde 
B) 1-ethanaldehyde 
C) 1-ethanone 
D) ethanal 
E) methanal

Question 16

Propanal is more soluble than pentanal.

Accepted Answer

A) True 
 B)False

Question 17

Formaldehyde is used industrially to make

Accepted Answer

A) polymers. 
B) insulating materials. 
C) carpeting. 
D) All of the above. 
E) None of the above. 
A) polymers. 
B) insulating materials. 
C) carpeting. 
D) All of the above. 
E) None of the above.

Question 18

An acetal is formed from an aldehyde or ketone and one molecule of alcohol.

Accepted Answer

A) True 
 B)False

Question 19

This compound is chiral.

Accepted Answer

A) True 
 B)False

Question 20

The carbonyl group consists of a carbon-oxygen single bond, and a second bond to hydrogen.

Accepted Answer

A) True 
 B)False

Exam 14: Aldehydes, Ketones, and Chiral Molecules

The oxygen atom in a carbonyl group is ________ the carbon atom.

Acetone can be produced by the body when a person is

How many carbonyl-containing isomers does the formula C3H6O have?

Benedict's test can be used to determine whether an α-hydroxyaldehyde functional group is present.

The product of adding two molecules of an alcohol to an aldehyde in the presence of acid is a(n)

The carbonyl group gives ketones lower boiling points than alkanes of similar mass.

The hydrogenation of 2-methylpropanal gives the product

How many hydrogen atoms is the carbonyl group in a ketone bonded to?

Which molecule below has stereoisomers with different biological effects?

Excessive exposure to formaldehyde can irritate the eyes and respiratory tract.

2-butanol is a chiral molecule.

Acetone is a three-carbon aldehyde.

The carbonyl group gives aldehydes higher boiling points than alkanes of similar mass.

In the IUPAC naming system, a ketone is named by replacing the -e in the corresponding alkane name with

What is the IUPAC name for this compound?

Propanal is more soluble than pentanal.

Formaldehyde is used industrially to make

An acetal is formed from an aldehyde or ketone and one molecule of alcohol.

This compound is chiral.

The carbonyl group consists of a carbon-oxygen single bond, and a second bond to hydrogen.

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