Question 1

Which of the following is not an isomer of ethyl acetate?

Accepted Answer

A)  methyl propanoate 
B)  propyl formate 
C)  butanoic acid 
D)  None, they are all isomers of ethyl acetate. 
A)  methyl propanoate 
B)  propyl formate 
C)  butanoic acid 
D)  None, they are all isomers of ethyl acetate.

Question 2

Which of the following is an example of a polyester?

Accepted Answer

A)  Lexan 
B)  nylon-66 
C)  polystyrene 
D)  poly(ethylene terephthalate) 
A)  Lexan 
B)  nylon-66 
C)  polystyrene 
D)  poly(ethylene terephthalate)

Question 3

What is the minimum number of carbon atoms present in an anhydride?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 4

Which of the following occurs when water is added to low molecular weight anhydrides?

Accepted Answer

A)  The anhydride physically absorbs the water, but no chemical reaction occurs. 
B)  The anhydride reacts slowly to produce two molecules of carboxylic acid. 
C)  The anhydride reacts readily to produce two molecules of carboxylic acid. 
D)  What happens is highly dependent on the identity of the anhydride. 
A)  The anhydride physically absorbs the water, but no chemical reaction occurs. 
B)  The anhydride reacts slowly to produce two molecules of carboxylic acid. 
C)  The anhydride reacts readily to produce two molecules of carboxylic acid. 
D)  What happens is highly dependent on the identity of the anhydride.

Question 5

Pyridoxal phosphate is a metabolically active form of which of the following vitamins?

Accepted Answer

A)  vitamin B6 
B)  vitamin B12 
C)  vitamin D 
D)  vitamin E 
A)  vitamin B6 
B)  vitamin B12 
C)  vitamin D 
D)  vitamin E

Question 6

Which of the following can be used to mediate the hydrolysis of esters?

Accepted Answer

A)  aqueous sulfuric acid 
B)  aqueous sodium hydroxide 
C)  either a or b 
D)  neither a nor b 
A)  aqueous sulfuric acid 
B)  aqueous sodium hydroxide 
C)  either a or b 
D)  neither a nor b

Question 7

Which of the following can be formed when the ammonium salt derived from reaction of a carboxylic acid and an amine is heated to a sufficiently high temperature?

Accepted Answer

A)  an amide 
B)  an amino acid 
C)  Either a or b, it depends on the identity of the salt. 
D)  neither a nor b 
A)  an amide 
B)  an amino acid 
C)  Either a or b, it depends on the identity of the salt. 
D)  neither a nor b

Question 8

What is the minimum number of oxygen atoms present in an anhydride?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 9

Which of the following esters does not have an isomeric ester?

Accepted Answer

A)  methyl formate 
B)  ethyl formate 
C)  methyl acetate 
D)  ethyl acetate 
A)  methyl formate 
B)  ethyl formate 
C)  methyl acetate 
D)  ethyl acetate

Question 10

Which of the following pairs of reagents can be used to synthesize the polycarbonate Lexan?

Accepted Answer

A)  phosgene and bisphenol A 
B)  phosgene and the disodium salt of bisphenol A 
C)  H2CO3 and bisphenol A 
D)  H2CO3 and the disodium salt of bisphenol A 
A)  phosgene and bisphenol A 
B)  phosgene and the disodium salt of bisphenol A 
C)  H2CO3 and bisphenol A 
D)  H2CO3 and the disodium salt of bisphenol A

Question 11

What products are obtained when acetamide is hydrolyzed in a solution which contains sodium hydroxide?

Accepted Answer

A)  sodium acetate and acetic acid 
B)  sodium acetate and ammonia 
C)  acetic acid and ammonium chloride 
D)  acetic acid and ammonia 
A)  sodium acetate and acetic acid 
B)  sodium acetate and ammonia 
C)  acetic acid and ammonium chloride 
D)  acetic acid and ammonia

Question 12

What are the organic products obtained from the following reaction?

Accepted Answer

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

Question 13

Which of the following is formed by the reaction of propanoic anhydride with diethylamine?

Accepted Answer

A)  propanamide 
B)  N-ethylpropanamide 
C)  N,N-diethylpropanamide 
D)  ethyl propanoate 
A)  propanamide 
B)  N-ethylpropanamide 
C)  N,N-diethylpropanamide 
D)  ethyl propanoate

Question 14

Which of the following statements is true regarding the hydrolysis of amides?

Accepted Answer

A)  Amides do not undergo hydrolysis. 
B)  Amides are more difficult to hydrolyze than are esters. 
C)  Amides and esters are hydrolyzed under similar conditions. 
D)  Amides are more easily hydrolyzed than are esters. 
A)  Amides do not undergo hydrolysis. 
B)  Amides are more difficult to hydrolyze than are esters. 
C)  Amides and esters are hydrolyzed under similar conditions. 
D)  Amides are more easily hydrolyzed than are esters.

Question 15

Which of the following will be formed when an amine and a carboxylic acid react at room temperature?

Accepted Answer

A)  an amide 
B)  an amino acid 
C)  an ammonium carboxylate salt 
D)  none of these 
A)  an amide 
B)  an amino acid 
C)  an ammonium carboxylate salt 
D)  none of these

Question 16

Which is following is true of the hydrolysis of esters?

Accepted Answer

A)  It occurs rapidly, even in cold water. 
B)  It occurs rapidly in water at room temperature. 
C)  It occurs rapidly in boiling water. 
D)  none of the above 
A)  It occurs rapidly, even in cold water. 
B)  It occurs rapidly in water at room temperature. 
C)  It occurs rapidly in boiling water. 
D)  none of the above

Question 17

Which of the following statements best describes the functional group of phosphoric anhydrides?

Accepted Answer

A)  two phosphonyl groups bonded to the same carbon 
B)  two phosphoryl groups bonded to the same carbon 
C)  two phosphonyl groups bonded to the same oxygen atom 
D)  two phosphoryl groups bonded to the same oxygen atom 
A)  two phosphonyl groups bonded to the same carbon 
B)  two phosphoryl groups bonded to the same carbon 
C)  two phosphonyl groups bonded to the same oxygen atom 
D)  two phosphoryl groups bonded to the same oxygen atom

Question 18

What products are obtained when acetamide is hydrolyzed in a solution which contains hydrochloric acid?

Accepted Answer

A)  sodium acetate and acetic acid 
B)  sodium acetate and ammonia 
C)  acetic acid and ammonium chloride 
D)  acetic acid and ammonia 
A)  sodium acetate and acetic acid 
B)  sodium acetate and ammonia 
C)  acetic acid and ammonium chloride 
D)  acetic acid and ammonia

Question 19

Which of the following is not a β-lactam antibiotic?

Accepted Answer

A)  Cephalexin 
B)  Amoxicillin 
C)  Permethrin 
D)  Clavulanic acid 
A)  Cephalexin 
B)  Amoxicillin 
C)  Permethrin 
D)  Clavulanic acid

Question 20

What is the IUPAC name for the following compound?

Accepted Answer

A)  diamino pentanoate 
B)  pentanediamine 
C)  pentanediamide 
D)  diamidopropane 
A)  diamino pentanoate 
B)  pentanediamine 
C)  pentanediamide 
D)  diamidopropane

Exam 19: Carboxylic Anhydrides, Esters, and Amides

Which of the following is not an isomer of ethyl acetate?

Which of the following is an example of a polyester?

What is the minimum number of carbon atoms present in an anhydride?

Which of the following occurs when water is added to low molecular weight anhydrides?

Pyridoxal phosphate is a metabolically active form of which of the following vitamins?

Which of the following can be used to mediate the hydrolysis of esters?

Which of the following can be formed when the ammonium salt derived from reaction of a carboxylic acid and an amine is heated to a sufficiently high temperature?

What is the minimum number of oxygen atoms present in an anhydride?

Which of the following esters does not have an isomeric ester?

Which of the following pairs of reagents can be used to synthesize the polycarbonate Lexan?

What products are obtained when acetamide is hydrolyzed in a solution which contains sodium hydroxide?

What are the organic products obtained from the following reaction?

Which of the following is formed by the reaction of propanoic anhydride with diethylamine?

Which of the following statements is true regarding the hydrolysis of amides?

Which of the following will be formed when an amine and a carboxylic acid react at room temperature?

Which is following is true of the hydrolysis of esters?

Which of the following statements best describes the functional group of phosphoric anhydrides?

What products are obtained when acetamide is hydrolyzed in a solution which contains hydrochloric acid?

Which of the following is not a β-lactam antibiotic?

What is the IUPAC name for the following compound?

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