Question 1

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 2

Identify the product formed when propanoic anhydride is treated 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 3

Which enantiomer of ibuprofen inhibits cyclooxygenase (COX) activity?

Accepted Answer

A)  (R)-ibuprofen 
B)  (S)-ibuprofen 
C)  both (R)-ibuprofen and (S)-ibuprofen 
D)  none of these 
A)  (R)-ibuprofen 
B)  (S)-ibuprofen 
C)  both (R)-ibuprofen and (S)-ibuprofen 
D)  none of these

Question 4

Which of the following compounds are phosphoric anhydrides?

Accepted Answer

A)  only (i) and (ii) 
B)  only (ii) and (iii) 
C)  only (i) and (iii) 
D)  (i), (ii), and (iii) 
A)  only (i) and (ii) 
B)  only (ii) and (iii) 
C)  only (i) and (iii) 
D)  (i), (ii), and (iii)

Question 5

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 6

Which of the following pairs of products is formed when ethyl benzoate is hydrolyzed in an acidic solution?

Accepted Answer

A)  benzoic acid and an ethanoate salt 
B)  ethanol and a benzoate salt 
C)  benzoic acid and ethanol 
D)  benzoic anhydride and methanol 
A)  benzoic acid and an ethanoate salt 
B)  ethanol and a benzoate salt 
C)  benzoic acid and ethanol 
D)  benzoic anhydride and methanol

Question 7

Identify the product formed by the transesterification of the given ester with ethanol.

Accepted Answer

A)  butanoic acid and 1-butanol 
B)  decanoic acid and ethanol 
C)  methyl butanoate and 1-butanol 
D)  ethyl decanoate and methanol 
A)  butanoic acid and 1-butanol 
B)  decanoic acid and ethanol 
C)  methyl butanoate and 1-butanol 
D)  ethyl decanoate and methanol

Question 8

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 9

Which ester is formed by the reaction of CH3CH2COOH with CH3CH2OH?

Accepted Answer

A)  ethyl acetate 
B)  ethyl propanoate 
C)  propyl acetate. 
D)  propyl acetate 
A)  ethyl acetate 
B)  ethyl propanoate 
C)  propyl acetate. 
D)  propyl acetate

Question 10

Which of the following is a biologically important phosphoric ester?

Accepted Answer

A)  pyrophosphate 
B)  pyridoxal phosphate 
C)  dihydroxyacetone 
D)  triphosphate ion 
A)  pyrophosphate 
B)  pyridoxal phosphate 
C)  dihydroxyacetone 
D)  triphosphate ion

Question 11

Which of the following statements is true of natural pyrethrins?

Accepted Answer

A)  They are esters of chrysanthemic acid. 
B)  They are amides of permethrin. 
C)  They are esters of permethrin. 
D)  They are amides of chrysanthemic acid. 
A)  They are esters of chrysanthemic acid. 
B)  They are amides of permethrin. 
C)  They are esters of permethrin. 
D)  They are amides of chrysanthemic acid.

Question 12

Which pair of products is formed when ethyl butanoate is hydrolyzed in a basic solution?

Accepted Answer

A)  ethanol and a butanoate salt 
B)  ethanol and propanoic acid 
C)  butanol and an acetate salt 
D)  propanol and acetic acid 
A)  ethanol and a butanoate salt 
B)  ethanol and propanoic acid 
C)  butanol and an acetate salt 
D)  propanol and acetic acid

Question 13

Identify the key enzyme involved in the conversion of arachidonic acid to prostaglandins.

Accepted Answer

A)  esterase 
B)  β-lactamase 
C)  cyclooxygenase 
D)  polymerase 
A)  esterase 
B)  β-lactamase 
C)  cyclooxygenase 
D)  polymerase

Question 14

Identify the given compound.

Accepted Answer

A)  Kevlar 
B)  nylon-66 
C)  nylon-6,10 
D)  Dacron 
A)  Kevlar 
B)  nylon-66 
C)  nylon-6,10 
D)  Dacron

Question 15

How many moles of neutral organic compounds will be formed when one mole of the given compound is hydrolyzed in an aqueous solution containing an excess of sodium hydroxide?

Accepted Answer

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

Question 16

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

Accepted Answer

A)  aqueous sulfuric acid 
B)  aqueous sodium hydroxide 
C)  aqueous sulfuric acid and aqueous sodium hydroxide 
D)  none of these 
A)  aqueous sulfuric acid 
B)  aqueous sodium hydroxide 
C)  aqueous sulfuric acid and aqueous sodium hydroxide 
D)  none of these

Question 17

Consider the following structure.   Which type of functional group is represented by the given compound?

Accepted Answer

A)  phosphoric acid 
B)  phosphoric anhydride 
C)  phosphoric ester 
D)  pyrophosphate anion 
A)  phosphoric acid 
B)  phosphoric anhydride 
C)  phosphoric ester 
D)  pyrophosphate anion

Exam 18: Carboxylic Anhydrides, Esters, and Amides

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

Identify the product formed when propanoic anhydride is treated with diethylamine.

Which enantiomer of ibuprofen inhibits cyclooxygenase (COX) activity?

Which of the following compounds are phosphoric anhydrides?

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

Which of the following pairs of products is formed when ethyl benzoate is hydrolyzed in an acidic solution?

Identify the product formed by the transesterification of the given ester with ethanol.

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?

Which ester is formed by the reaction of CH3CH2COOH with CH3CH2OH?

Which of the following is a biologically important phosphoric ester?

Which of the following statements is true of natural pyrethrins?

Which pair of products is formed when ethyl butanoate is hydrolyzed in a basic solution?

Identify the key enzyme involved in the conversion of arachidonic acid to prostaglandins.

Identify the given compound.

How many moles of neutral organic compounds will be formed when one mole of the given compound is hydrolyzed in an aqueous solution containing an excess of sodium hydroxide?

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

Consider the following structure. Which type of functional group is represented by the given compound?

Matter, Energy, and Measurement

Atoms

Chemical Bonds

Chemical Reactions

Gases, Liquids, and Solids

Solutions and Colloids

Reaction Rates and Chemical Equilibrium

Acids and Bases

Nuclear Chemistry

Organic Chemistry

Alkanes

Alkenes, Alkynes, and Aromatic Compounds

Alcohols, Ethers, and Thiols

Chirality: the Handedness of Molecules

Amines

Aldehydes and Ketones

Carboxylic Acids

Carbohydrates

Lipids

Proteins

Enzymes

Chemical Communications: Neurotransmitters and Hormones

Nucleotides, Nucleic Acids, and Heredity

Gene Expression and Protein Synthesis

Bioenergetics: How the Body Converts Food to Energy

Specific Catabolic Pathways: Carbohydrate, Lipid, and Protein Metabolism

Biosynthetic Pathways

Nutrition

Immunochemistry

Body Fluids

Filters

Which ester is formed by the reaction of CH₃CH₂COOH with CH₃CH₂OH?