Question 1

The hydrogenation of 2-methylpropanal yields

Accepted Answer

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

Question 2

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

Accepted Answer

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

Question 3

Which of the compounds would give a positive Tollens' test?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 4

Which of the following pairs of compounds are isomers?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 5

What is the name of this compound?

Accepted Answer

A) 3-methylbutanone 
B) 2-methyl-3-butanone 
C) 2-methylbutanone 
D) pentanone 
E) 3-methyl-2-butanone 
A) 3-methylbutanone 
B) 2-methyl-3-butanone 
C) 2-methylbutanone 
D) pentanone 
E) 3-methyl-2-butanone

Question 6

The reduction of 3-pentanone with hydrogen in the presence of a nickel catalyst will yield

Accepted Answer

A) pentanaldehyde. 
B) 3-pentanol. 
C) diethyl alcohol. 
D) pentane. 
E) 2-pentene. 
A) pentanaldehyde. 
B) 3-pentanol. 
C) diethyl alcohol. 
D) pentane. 
E) 2-pentene.

Question 7

Acetone can be produced by the body when a person is

Accepted Answer

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

Question 8

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

Accepted Answer

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

Question 9

What are the bond angles in a typical carbonyl group?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 10

How do sugars form cyclic hemiacetals?

Accepted Answer

A) Functional groups within molecule of sugar react with each other. 
B) Two molecules of a sugar react with one another. 
C) A molecule of sugar reacts with an added aldehyde. 
D) A sugar molecule decomposes. 
E) A molecule of sugar reacts with an added alcohol. 
A) Functional groups within molecule of sugar react with each other. 
B) Two molecules of a sugar react with one another. 
C) A molecule of sugar reacts with an added aldehyde. 
D) A sugar molecule decomposes. 
E) A molecule of sugar reacts with an added alcohol.

Question 11

Which of the following would NOT be water soluble?

Accepted Answer

A) acetone 
B) propanal 
C) 2-butanone 
D) formaldehyde 
E) 3-heptanone 
A) acetone 
B) propanal 
C) 2-butanone 
D) formaldehyde 
E) 3-heptanone

Question 12

Which one of the following compounds is an aldehyde?

Accepted Answer

A)    
B)    
C)    
D)    
E)  CH3-CH2-O-CH2-CH3 
A)    
B)    
C)    
D)    
E)  CH3-CH2-O-CH2-CH3

Question 13

An acetal is formed from two molecules of an alcohol and a(n)

Accepted Answer

A) ester. 
B) ether. 
C) carboxylic acid. 
D) aldehyde. 
E) alkyl ether. 
A) ester. 
B) ether. 
C) carboxylic acid. 
D) aldehyde. 
E) alkyl ether.

Question 14

What is the common name of this compound?

Accepted Answer

A) acetone 
B) 3-pentanone 
C) ethyl methyl ketone 
D) dimethyl ketone 
E) diethyl ketone 
A) acetone 
B) 3-pentanone 
C) ethyl methyl ketone 
D) dimethyl ketone 
E) diethyl ketone

Question 15

In all aldehydes except formaldehyde, how many hydrogen atoms are bonded to the carbonyl group?

Accepted Answer

A) one 
B) two 
C) three 
D) four 
A) one 
B) two 
C) three 
D) four

Question 16

What is the IUPAC name of this compound?

Accepted Answer

A) 3-methylbutanal 
B) 2-methylbutanone 
C) 3-methylbutanone 
D) pentanone 
E) 2-methyl-1-butanal 
A) 3-methylbutanal 
B) 2-methylbutanone 
C) 3-methylbutanone 
D) pentanone 
E) 2-methyl-1-butanal

Question 17

The addition of hydrogen to an organic compound or the loss of oxygen is called

Accepted Answer

A) halogenation. 
B) oxidation. 
C) dehydration. 
D) reduction. 
E) hydration. 
A) halogenation. 
B) oxidation. 
C) dehydration. 
D) reduction. 
E) hydration.

Question 18

Formaldehyde is used industrially to make

Accepted Answer

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

Question 19

How many moles of an alcohol are needed to react with 1 mole of an aldehyde to form a hemiacetal?

Accepted Answer

A) 3.5 moles 
B) 3 moles 
C) 1.5 moles 
D) 2 moles 
E) 1 moles 
A) 3.5 moles 
B) 3 moles 
C) 1.5 moles 
D) 2 moles 
E) 1 moles

Question 20

The common name for 2-butanone, a readily available solvent, is

Accepted Answer

A)    
B)  butyl ketone. 
C)  methyl acetone. 
D)  methyl ethyl ketone. 
E) butyl ether. 
A)    
B)  butyl ketone. 
C)  methyl acetone. 
D)  methyl ethyl ketone. 
E) butyl ether.

Exam 14: Aldehydes and Ketones

The hydrogenation of 2-methylpropanal yields

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

Which of the compounds would give a positive Tollens' test?

Which of the following pairs of compounds are isomers?

What is the name of this compound?

The reduction of 3-pentanone with hydrogen in the presence of a nickel catalyst will yield

Acetone can be produced by the body when a person is

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

What are the bond angles in a typical carbonyl group?

How do sugars form cyclic hemiacetals?

Which of the following would NOT be water soluble?

Which one of the following compounds is an aldehyde?

An acetal is formed from two molecules of an alcohol and a(n)

What is the common name of this compound?

In all aldehydes except formaldehyde, how many hydrogen atoms are bonded to the carbonyl group?

What is the IUPAC name of this compound?

The addition of hydrogen to an organic compound or the loss of oxygen is called

Formaldehyde is used industrially to make

How many moles of an alcohol are needed to react with 1 mole of an aldehyde to form a hemiacetal?

The common name for 2-butanone, a readily available solvent, is

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