Question 1

Ketones are not oxidized since they contain no H atom bonded to the carbonyl carbon.

Accepted Answer

A) True 
 B)False

Question 2

Which compound(s)would give a positive Tollens test?

Accepted Answer

A) alcohols 
B) aldehydes 
C) ketones 
D) carboxylic acids 
E) alcohols and aldehydes 
A) alcohols 
B) aldehydes 
C) ketones 
D) carboxylic acids 
E) alcohols and aldehydes

Question 3

Aldehydes play an important role in the sun tanning industry as the active ingredient in commercial tanning agents that produce sunless tans.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following represents the general condensed formula for an aldehyde?

Accepted Answer

A) RCOOH 
B) RCHO 
C) RCOR 
D) RCOH 
E) RCH2OH 
A) RCOOH 
B) RCHO 
C) RCOR 
D) RCOH 
E) RCH2OH

Question 5

The reaction below illustrates oxidation by Tollens' reagent.

Accepted Answer

A) True 
 B)False

Question 6

The IUPAC name of the compound below is 2-methyl-2-propylpropanal.

Accepted Answer

A) True 
 B)False

Question 7

All compounds that react with the Tollens reagent react with K2Cr2O7, but not all compounds that react with K2Cr2O7 react with the Tollens reagent.

Accepted Answer

A) True 
 B)False

Question 8

Since oxygen is more electronegative than carbon, a carbonyl group is polar.

Accepted Answer

A) True 
 B)False

Question 9

The reaction below illustrates oxidation of an aldehyde.

Accepted Answer

A) True 
 B)False

Question 10

As is in the laboratory, the reduction of carbonyl groups in biological systems is accomplished using H2 and Pd as a reducing agent.

Accepted Answer

A) True 
 B)False

Question 11

What is the product of the reduction of a ketone?

Accepted Answer

A) a primary alcohol 
B) a secondary alcohol 
C) a tertiary alcohol 
D) a carboxylic acid 
E) an ether 
A) a primary alcohol 
B) a secondary alcohol 
C) a tertiary alcohol 
D) a carboxylic acid 
E) an ether

Question 12

Which compound is an acetal?

Accepted Answer

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

Question 13

Which compound has the greatest solubility in water?

Accepted Answer

A) CH3(CH2)5CHO 
B) CH3(CH2)4COCH2CH3 
C) CH3CH2CHO 
D) The compounds above are equally soluble in water. 
A) CH3(CH2)5CHO 
B) CH3(CH2)4COCH2CH3 
C) CH3CH2CHO 
D) The compounds above are equally soluble in water.

Question 14

What type of compound is shown below?

Accepted Answer

A) an epoxide 
B) a cyclic hemiacetal 
C) an aldehyde 
D) a cyclic acetal 
A) an epoxide 
B) a cyclic hemiacetal 
C) an aldehyde 
D) a cyclic acetal

Question 15

Which compound has the highest boiling point?

Accepted Answer

A) CH3(CH2)5CH3 
B) CH3(CH2)4CHO 
C) CH3(CH2)4CH2OH 
D) All of the compounds above have the same boiling point. 
A) CH3(CH2)5CH3 
B) CH3(CH2)4CHO 
C) CH3(CH2)4CH2OH 
D) All of the compounds above have the same boiling point.

Question 16

A hemiacetal contains which two groups bonded to the same carbon atom?

Accepted Answer

A) an OH (hydroxyl)group and an OR (alkoxy)group 
B) two OH (hydroxyl)groups 
C) two OR (alkoxy)groups 
D) an OH (hydroxyl)group and a C=O (carbonyl)group 
A) an OH (hydroxyl)group and an OR (alkoxy)group 
B) two OH (hydroxyl)groups 
C) two OR (alkoxy)groups 
D) an OH (hydroxyl)group and a C=O (carbonyl)group

Question 17

The following ketones play an important role in the tanning industry and are found in many commercial sunscreens. Which ketone is expected to be the most soluble in water and therefore the most readily washed off when an individual goes swimming?

Accepted Answer

A)    
B)    
C)    
D) All would be expected to have the same solubility. 
A)    
B)    
C)    
D) All would be expected to have the same solubility.

Question 18

Aldehydes are identified by the suffix _____, and the carbon chain is numbered to place the carbonyl group as the _____(first/last)carbon atom.

Accepted Answer

The answer of Aldehydes are identified by the suffix _____,...

Question 19

What is the IUPAC name of the compound below?

Accepted Answer

A) 4-chloro-3-pentyl-1-cyclohexone 
B) 4-chloro-3-pentylcyclohexanone 
C) 1-chloro-2-pentyl-4-cyclohexanone 
D) 4-chloro-3-pentylphenone 
A) 4-chloro-3-pentyl-1-cyclohexone 
B) 4-chloro-3-pentylcyclohexanone 
C) 1-chloro-2-pentyl-4-cyclohexanone 
D) 4-chloro-3-pentylphenone

Question 20

Cyclic hemiacetals are converted to acetals by reaction with an alcohol.

Accepted Answer

A) True 
 B)False

Exam 16: Aldehydes and Ketones

Ketones are not oxidized since they contain no H atom bonded to the carbonyl carbon.

Which compound(s)would give a positive Tollens test?

Aldehydes play an important role in the sun tanning industry as the active ingredient in commercial tanning agents that produce sunless tans.

Which of the following represents the general condensed formula for an aldehyde?

The reaction below illustrates oxidation by Tollens' reagent.

The IUPAC name of the compound below is 2-methyl-2-propylpropanal.

All compounds that react with the Tollens reagent react with K2Cr2O7, but not all compounds that react with K2Cr2O7 react with the Tollens reagent.

Since oxygen is more electronegative than carbon, a carbonyl group is polar.

The reaction below illustrates oxidation of an aldehyde.

As is in the laboratory, the reduction of carbonyl groups in biological systems is accomplished using H2 and Pd as a reducing agent.

What is the product of the reduction of a ketone?

Which compound is an acetal?

Which compound has the greatest solubility in water?

What type of compound is shown below?

Which compound has the highest boiling point?

A hemiacetal contains which two groups bonded to the same carbon atom?

The following ketones play an important role in the tanning industry and are found in many commercial sunscreens. Which ketone is expected to be the most soluble in water and therefore the most readily washed off when an individual goes swimming?

Aldehydes are identified by the suffix _____, and the carbon chain is numbered to place the carbonyl group as the _____(first/last)carbon atom.

What is the IUPAC name of the compound below?

Cyclic hemiacetals are converted to acetals by reaction with an alcohol.

Matter and Measurement

Atoms and the Periodic Table

Ionic Compounds

Covalent Compounds

Chemical Reactions

Energy Changes, Reaction Rates, and Equilibrium

Gases, Liquids, and Solids

Solutions

Acids and Bases

Nuclear Chemistry

Introduction to Organic Molecules and Functional Groups

Alkanes

Unsaturated Hydrocarbons

Organic Compounds That Contain Oxygen, Halogen, or Sulfur

The Three-Dimensional Shape of Molecules

Carboxylic Acids, Esters, and Amides

Amines and Neurotransmitters

Lipids

Carbohydrates

Amino Acids, Proteins, and Enzymes

Nucleic Acids and Protein Synthesis

Digestion and the Conversion of Food Into Energy

Carbohydrate, Lipid, and Protein Metabolism

Filters

All compounds that react with the Tollens reagent react with K₂Cr₂O₇, but not all compounds that react with K₂Cr₂O₇react with the Tollens reagent.

As is in the laboratory, the reduction of carbonyl groups in biological systems is accomplished using H₂ and Pd as a reducing agent.

Aldehydes are identified by the suffix _, and the carbon chain is numbered to place the carbonyl group as the _(first/last)carbon atom.