Question 1

Predict the products formed in the given reaction.

Accepted Answer

A)  1-propanol and butanoic acid 
B)  1-propanol and sodium butanoate 
C)  1-butanol and propanoic acid 
D)  1-butanol and sodium propanoate 
A)  1-propanol and butanoic acid 
B)  1-propanol and sodium butanoate 
C)  1-butanol and propanoic acid 
D)  1-butanol and sodium propanoate

Question 2

For which of the following organisms are pyrethrins poisonous?

Accepted Answer

A)  insects 
B)  mammals 
C)  plants 
D)  all of these 
A)  insects 
B)  mammals 
C)  plants 
D)  all of these

Question 3

Identify the products formed when acetamide is hydrolyzed in 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 4

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 5

Identify the correct pair of reactants used in the formation of Kevlar.

Accepted Answer

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

Question 6

Which statement best describes step-growth polymerization?

Accepted Answer

A)  the opening of a double bond 
B)  the reaction of a difunctional molecule with a monofunctional molecule 
C)  the reaction of two difunctional molecules with each other 
D)  none of these 
A)  the opening of a double bond 
B)  the reaction of a difunctional molecule with a monofunctional molecule 
C)  the reaction of two difunctional molecules with each other 
D)  none of these

Question 7

Which of the following compounds is formed by the reaction of formic anhydride with methylamine?

Accepted Answer

A)  formamide 
B)  N-methylformamide 
C)  N,N-dimethylformamide 
D)  a mixture of two or more of these compounds 
A)  formamide 
B)  N-methylformamide 
C)  N,N-dimethylformamide 
D)  a mixture of two or more of these compounds

Question 8

Identify a commonly used catalyst in a Fischer esterification reaction.

Accepted Answer

A)  acetic acid 
B)  dilute hydrochloric acid 
C)  dilute carbonic acid 
D)  concentrated sulfuric acid 
A)  acetic acid 
B)  dilute hydrochloric acid 
C)  dilute carbonic acid 
D)  concentrated sulfuric acid

Question 9

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

Accepted Answer

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

Question 10

Which pair of products is formed when formic anhydride reacts with ethanol?

Accepted Answer

A)  acetic acid and ethyl formate 
B)  acetic acid and methyl formate 
C)  formic acid and methyl formate 
D)  formic acid and ethyl formate 
A)  acetic acid and ethyl formate 
B)  acetic acid and methyl formate 
C)  formic acid and methyl formate 
D)  formic acid and ethyl formate

Question 11

Which of the following statements is true of a reaction between a low-molecular-weight anhydride and water?

Accepted Answer

A)  The anhydride physically absorbs the water, but no chemical reaction occurs. 
B)  The anhydride reacts slowly with water to produce two molecules of carboxylic acid. 
C)  The anhydride reacts readily with water to produce two molecules of carboxylic acid. 
D)  Whether or not the anhydride reacts with water depends on its molecular weight. 
A)  The anhydride physically absorbs the water, but no chemical reaction occurs. 
B)  The anhydride reacts slowly with water to produce two molecules of carboxylic acid. 
C)  The anhydride reacts readily with water to produce two molecules of carboxylic acid. 
D)  Whether or not the anhydride reacts with water depends on its molecular weight.

Question 12

Identify a mixed anhydride.

Accepted Answer

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

Question 13

Which of the following pairs of products is formed by the acid-catalyzed hydrolysis of ethyl formate?

Accepted Answer

A)  ethanol and a formate salt 
B)  ethanol and formic acid 
C)  methanol and an ethanoate salt 
D)  methanol and ethanoic acid 
A)  ethanol and a formate salt 
B)  ethanol and formic acid 
C)  methanol and an ethanoate salt 
D)  methanol and ethanoic acid

Question 14

Which of the following statements is true of ester hydrolysis?

Accepted Answer

A)  Both an acid and a base can act as the true catalysts of the reaction. 
B)  Neither an acid nor a base is the true catalyst of the reaction. 
C)  An acid is a true catalyst, but a base is a reagent and must be present in the appropriate stoichiometric amount. 
D)  A base is a true catalyst, but an acid is a reagent and must be present in the appropriate stoichiometric amount. 
A)  Both an acid and a base can act as the true catalysts of the reaction. 
B)  Neither an acid nor a base is the true catalyst of the reaction. 
C)  An acid is a true catalyst, but a base is a reagent and must be present in the appropriate stoichiometric amount. 
D)  A base is a true catalyst, but an acid is a reagent and must be present in the appropriate stoichiometric amount.

Question 15

Which of the following are produced when acetic anhydride reacts with methanol?

Accepted Answer

A)  only propanoic acid 
B)  only methyl acetate 
C)  formic acid and methyl acetate 
D)  acetic acid and methyl acetate 
A)  only propanoic acid 
B)  only methyl acetate 
C)  formic acid and methyl acetate 
D)  acetic acid and methyl acetate

Question 16

What is the common name of the following compound?

Accepted Answer

A)  salicin 
B)  aspirin 
C)  adipic acid 
D)  barbituric acid 
A)  salicin 
B)  aspirin 
C)  adipic acid 
D)  barbituric acid

Question 17

Which of the following types of compounds is formed when an anhydride reacts with an alcohol?

Accepted Answer

A)  only a carboxylic acid 
B)  only an ester 
C)  a carboxylic acid and an ester 
D)  none of these 
A)  only a carboxylic acid 
B)  only an ester 
C)  a carboxylic acid and an ester 
D)  none of these

Question 18

Which type of phosphoric esters are formed by phosphoric acid (H3PO4)?

Accepted Answer

A)  monoesters 
B)  diesters 
C)  triesters 
D)  all of these 
A)  monoesters 
B)  diesters 
C)  triesters 
D)  all of these

Question 19

Examine the following ball-and-stick model. Elements other than carbon and hydrogen are labeled.   Which of the following will react with the given compound?

Accepted Answer

A)  water 
B)  ammonia 
C)  an alcohol 
D)  all of these 
A)  water 
B)  ammonia 
C)  an alcohol 
D)  all of these

Question 20

What is the IUPAC name of the following compound?

Accepted Answer

A)  aminopropanoate 
B)  propanamide 
C)  butanoylamine 
D)  butanamide 
A)  aminopropanoate 
B)  propanamide 
C)  butanoylamine 
D)  butanamide

Exam 18: Carboxylic Anhydrides, Esters, and Amides

Predict the products formed in the given reaction.

For which of the following organisms are pyrethrins poisonous?

Identify the products formed when acetamide is hydrolyzed in hydrochloric acid.

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

Identify the correct pair of reactants used in the formation of Kevlar.

Which statement best describes step-growth polymerization?

Which of the following compounds is formed by the reaction of formic anhydride with methylamine?

Identify a commonly used catalyst in a Fischer esterification reaction.

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

Which pair of products is formed when formic anhydride reacts with ethanol?

Which of the following statements is true of a reaction between a low-molecular-weight anhydride and water?

Identify a mixed anhydride.

Which of the following pairs of products is formed by the acid-catalyzed hydrolysis of ethyl formate?

Which of the following statements is true of ester hydrolysis?

Which of the following are produced when acetic anhydride reacts with methanol?

What is the common name of the following compound?

Which of the following types of compounds is formed when an anhydride reacts with an alcohol?

Which type of phosphoric esters are formed by phosphoric acid (H3PO4)?

Examine the following ball-and-stick model. Elements other than carbon and hydrogen are labeled. Which of the following will react with the given compound?

What is the IUPAC name of the following compound?

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Which type of phosphoric esters are formed by phosphoric acid (H₃PO₄)?