Question 1

What is the reason for norethynodrel's ability to function as a contraceptive?

Accepted Answer

A)  It is a ketone that is required to neutralize ovum production. 
B)  It is capable of mimicking progesterone establishing a false pregnancy. 
C)  It replaces estrogen and displaces the normal hormonal control. 
D)  It bonds to estrogen to reduce the estrogen levels. 
A)  It is a ketone that is required to neutralize ovum production. 
B)  It is capable of mimicking progesterone establishing a false pregnancy. 
C)  It replaces estrogen and displaces the normal hormonal control. 
D)  It bonds to estrogen to reduce the estrogen levels.

Question 2

The polarity of a carbonyl group can be depicted as:

Accepted Answer

A) True 
 B)False

Question 3

What is the flavoring for margarine?

Accepted Answer

A)  biacetyl 
B)  acetone 
C)  menthone 
D)  citral 
A)  biacetyl 
B)  acetone 
C)  menthone 
D)  citral

Question 4

Hemiacetals are

Accepted Answer

A)  partial acetals that can be converted by a reduction reaction. 
B)  unstable compounds that convert to acetals in the presence of an alcohol and an acid. 
C)  semiacetals produced by alcohol subtraction from a ketone. 
D)  There is more than one correct response. 
A)  partial acetals that can be converted by a reduction reaction. 
B)  unstable compounds that convert to acetals in the presence of an alcohol and an acid. 
C)  semiacetals produced by alcohol subtraction from a ketone. 
D)  There is more than one correct response.

Question 5

Which of the following is an aldehyde flavoring agent?

Accepted Answer

A)  biacetyl 
B)  menthol 
C)  vanillin 
D)  camphor 
A)  biacetyl 
B)  menthol 
C)  vanillin 
D)  camphor

Question 6

Which of the following substances is found in the rinds of lemons,limes and oranges?

Accepted Answer

A)  biacetal 
B)  dihydroxyacetone 
C)  menthone 
D)  citral 
A)  biacetal 
B)  dihydroxyacetone 
C)  menthone 
D)  citral

Question 7

What is the group that distinguishes aldehydes from most other classes of compounds?

Accepted Answer

A)  carboxyl 
B)  carbonyl 
C)  hydroxy 
D)  amide 
A)  carboxyl 
B)  carbonyl 
C)  hydroxy 
D)  amide

Question 8

The addition of an alcohol molecule to an aldehyde carbonyl group gives a hemiacetal.

Accepted Answer

A) True 
 B)False

Question 9

Acetone can strongly hydrogen bond to water.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following would you expect to be the most flammable?

Accepted Answer

A)  vanillin 
B)  benzaldehyde 
C)  camphor 
D)  acetone 
A)  vanillin 
B)  benzaldehyde 
C)  camphor 
D)  acetone

Question 11

When naming aldehydes,the aldehyde group is at position number 1.

Accepted Answer

A) True 
 B)False

Question 12

The formation of a ketal from a hemiketal and alcohol is usually a base catalyzed reaction.

Accepted Answer

A) True 
 B)False

Question 13

What starting material is necessary to complete the reaction below?

Accepted Answer

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

Question 14

Which of the following is a structural representation of benzaldehyde?

Accepted Answer

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

Question 15

Another name for acetaldehyde is 2-propane.

Accepted Answer

A) True 
 B)False

Question 16

To what class of compounds does glucose belong?

Accepted Answer

A)  cyclic ketone 
B)  cyclic aldehyde 
C)  cyclic hemiacetal 
D)  carboxylic acid 
A)  cyclic ketone 
B)  cyclic aldehyde 
C)  cyclic hemiacetal 
D)  carboxylic acid

Question 17

Our bodies rely on a two step process for detoxification of ethyl alcohol.The first step occurs in the cytoplasm of the liver,where the alcohol is oxidized.Which of the following materials is produced during that step?

Accepted Answer

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

Question 18

Which of the following properly ranks the relative aqueous solubility of each functional group?

Accepted Answer

A)  alkene < aldehyde < alcohol < ketone 
B)  aldehyde < ketone < alkene < alcohol 
C)  alkene < ketone < alcohol < aldehyde 
D)  alkene < ketone < aldehyde < alcohol 
A)  alkene < aldehyde < alcohol < ketone 
B)  aldehyde < ketone < alkene < alcohol 
C)  alkene < ketone < alcohol < aldehyde 
D)  alkene < ketone < aldehyde < alcohol

Question 19

Aldehydes are easier to oxidize than ketones.

Accepted Answer

A) True 
 B)False

Question 20

To prepare a ketone,one should oxidize a secondary alcohol.

Accepted Answer

A) True 
 B)False

Exam 14: Aldehydes and Ketones

What is the reason for norethynodrel's ability to function as a contraceptive?

The polarity of a carbonyl group can be depicted as:

What is the flavoring for margarine?

Hemiacetals are

Which of the following is an aldehyde flavoring agent?

Which of the following substances is found in the rinds of lemons,limes and oranges?

What is the group that distinguishes aldehydes from most other classes of compounds?

The addition of an alcohol molecule to an aldehyde carbonyl group gives a hemiacetal.

Acetone can strongly hydrogen bond to water.

Which of the following would you expect to be the most flammable?

When naming aldehydes,the aldehyde group is at position number 1.

The formation of a ketal from a hemiketal and alcohol is usually a base catalyzed reaction.

What starting material is necessary to complete the reaction below?

Which of the following is a structural representation of benzaldehyde?

Another name for acetaldehyde is 2-propane.

To what class of compounds does glucose belong?

Our bodies rely on a two step process for detoxification of ethyl alcohol.The first step occurs in the cytoplasm of the liver,where the alcohol is oxidized.Which of the following materials is produced during that step?

Which of the following properly ranks the relative aqueous solubility of each functional group?

Aldehydes are easier to oxidize than ketones.

To prepare a ketone,one should oxidize a secondary alcohol.

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