Question 1

The reverse reaction of acetal formation is

Accepted Answer

A) oxidation. 
B) reduction. 
C) hydrolysis. 
D) combustion. 
E) esterification. 
A) oxidation. 
B) reduction. 
C) hydrolysis. 
D) combustion. 
E) esterification.

Question 2

What is the product of oxidation of 2-butanone?

Accepted Answer

A) butanal 
B) 2-butanol 
C) butanoic acid 
D) 1-butanol 
E) no reaction 
A) butanal 
B) 2-butanol 
C) butanoic acid 
D) 1-butanol 
E) no reaction

Question 3

The result of a hydrolysis reaction is what?

Accepted Answer

A) getting the chemicals wet 
B) having an oxidation reduction reaction result in hydration of the molecule 
C) splitting of a molecule into the component substances 
D) one that forms water upon reaction 
E) addition of water across a double bond 
A) getting the chemicals wet 
B) having an oxidation reduction reaction result in hydration of the molecule 
C) splitting of a molecule into the component substances 
D) one that forms water upon reaction 
E) addition of water across a double bond

Question 4

In the Benedict's test,

Accepted Answer

A) an aldehyde is oxidized. 
B) a silver mirror is produced. 
C) the copper (II)ion is oxidized. 
D) all of these 
E) none of these 
A) an aldehyde is oxidized. 
B) a silver mirror is produced. 
C) the copper (II)ion is oxidized. 
D) all of these 
E) none of these

Question 5

Match the following.
-an example of an aldol

Accepted Answer

A)   
B) CH3CH2COCH2CH3 
C) CH3CH2CH2 H2CHO 
D) the simplest aldehyde,also named formaldehyde 
E) the simplest ketone,also named acetone
F)a functional group consisting of a carbon atom with a double bond to an oxygen atom
G)a functional group consisting of a carbonyl group bonded to to a carbon that is bonded
to one hydrogen atom and two other carbon atoms.
H)a compound with a carbon atom that is bonded to both an alcohol-like group and an ether-like group.
I)a functional group consisting of a carbonyl group bonded to two other carbon atoms
J)a compound with a carbon atom that is bonded to two ether-like groups.
K) 
L)  
A)   
B) CH3CH2COCH2CH3 
C) CH3CH2CH2 H2CHO 
D) the simplest aldehyde,also named formaldehyde 
E) the simplest ketone,also named acetone
F)a functional group consisting of a carbon atom with a double bond to an oxygen atom
G)a functional group consisting of a carbonyl group bonded to to a carbon that is bonded
to one hydrogen atom and two other carbon atoms.
H)a compound with a carbon atom that is bonded to both an alcohol-like group and an ether-like group.
I)a functional group consisting of a carbonyl group bonded to two other carbon atoms
J)a compound with a carbon atom that is bonded to two ether-like groups.
K) 
L)

Question 6

Which compound has the lowest boiling point?

Accepted Answer

A) CH3CH2OH 
B) CH3CH2CHO 
C) CH3CH2CH3 
D) CH3CH2CH2OH 
E) CH3CH2CH2CH3 
A) CH3CH2OH 
B) CH3CH2CHO 
C) CH3CH2CH3 
D) CH3CH2CH2OH 
E) CH3CH2CH2CH3

Question 7

What is the product of the reduction of 3-methyl-2-pentanone?

Accepted Answer

A) 3-methyl-2-pentanol 
B) 2-methyl-3-pentanol 
C) 3-methyl-2-pentanal 
D) 3-methyl-2-pentene 
E) no reaction 
A) 3-methyl-2-pentanol 
B) 2-methyl-3-pentanol 
C) 3-methyl-2-pentanal 
D) 3-methyl-2-pentene 
E) no reaction

Question 8

Match the following.
-an example of a ketone

Accepted Answer

A)   
B) CH3CH2COCH2CH3 
C) CH3CH2CH2 H2CHO 
D) the simplest aldehyde,also named formaldehyde 
E) the simplest ketone,also named acetone
F)a functional group consisting of a carbon atom with a double bond to an oxygen atom
G)a functional group consisting of a carbonyl group bonded to to a carbon that is bonded
to one hydrogen atom and two other carbon atoms.
H)a compound with a carbon atom that is bonded to both an alcohol-like group and an ether-like group.
I)a functional group consisting of a carbonyl group bonded to two other carbon atoms
J)a compound with a carbon atom that is bonded to two ether-like groups.
K) 
L)  
A)   
B) CH3CH2COCH2CH3 
C) CH3CH2CH2 H2CHO 
D) the simplest aldehyde,also named formaldehyde 
E) the simplest ketone,also named acetone
F)a functional group consisting of a carbon atom with a double bond to an oxygen atom
G)a functional group consisting of a carbonyl group bonded to to a carbon that is bonded
to one hydrogen atom and two other carbon atoms.
H)a compound with a carbon atom that is bonded to both an alcohol-like group and an ether-like group.
I)a functional group consisting of a carbonyl group bonded to two other carbon atoms
J)a compound with a carbon atom that is bonded to two ether-like groups.
K) 
L)

Question 9

Match the following.
-an example of a hemiacetal

Accepted Answer

A)   
B) CH3CH2COCH2CH3 
C) CH3CH2CH2 H2CHO 
D) the simplest aldehyde,also named formaldehyde 
E) the simplest ketone,also named acetone
F)a functional group consisting of a carbon atom with a double bond to an oxygen atom
G)a functional group consisting of a carbonyl group bonded to to a carbon that is bonded
to one hydrogen atom and two other carbon atoms.
H)a compound with a carbon atom that is bonded to both an alcohol-like group and an ether-like group.
I)a functional group consisting of a carbonyl group bonded to two other carbon atoms
J)a compound with a carbon atom that is bonded to two ether-like groups.
K) 
L)  
A)   
B) CH3CH2COCH2CH3 
C) CH3CH2CH2 H2CHO 
D) the simplest aldehyde,also named formaldehyde 
E) the simplest ketone,also named acetone
F)a functional group consisting of a carbon atom with a double bond to an oxygen atom
G)a functional group consisting of a carbonyl group bonded to to a carbon that is bonded
to one hydrogen atom and two other carbon atoms.
H)a compound with a carbon atom that is bonded to both an alcohol-like group and an ether-like group.
I)a functional group consisting of a carbonyl group bonded to two other carbon atoms
J)a compound with a carbon atom that is bonded to two ether-like groups.
K) 
L)

Question 10

Reduction of an aldehyde produces a

Accepted Answer

A) carboxylic acid. 
B) primary alcohol. 
C) secondary alcohol. 
D) tertiary alcohol. 
E) ketone. 
A) carboxylic acid. 
B) primary alcohol. 
C) secondary alcohol. 
D) tertiary alcohol. 
E) ketone.

Question 11

What is the product of the oxidation of a ketone?

Accepted Answer

A) an alcohol 
B) an aldehyde 
C) a carboxylic acid 
D) a hemiacetal 
E) None,ketones don't oxidize. 
A) an alcohol 
B) an aldehyde 
C) a carboxylic acid 
D) a hemiacetal 
E) None,ketones don't oxidize.

Question 12

Match the following.
-methanal

Accepted Answer

A)   
B) CH3CH2COCH2CH3 
C) CH3CH2CH2 H2CHO 
D) the simplest aldehyde,also named formaldehyde 
E) the simplest ketone,also named acetone
F)a functional group consisting of a carbon atom with a double bond to an oxygen atom
G)a functional group consisting of a carbonyl group bonded to to a carbon that is bonded
to one hydrogen atom and two other carbon atoms.
H)a compound with a carbon atom that is bonded to both an alcohol-like group and an ether-like group.
I)a functional group consisting of a carbonyl group bonded to two other carbon atoms
J)a compound with a carbon atom that is bonded to two ether-like groups.
K) 
L)  
A)   
B) CH3CH2COCH2CH3 
C) CH3CH2CH2 H2CHO 
D) the simplest aldehyde,also named formaldehyde 
E) the simplest ketone,also named acetone
F)a functional group consisting of a carbon atom with a double bond to an oxygen atom
G)a functional group consisting of a carbonyl group bonded to to a carbon that is bonded
to one hydrogen atom and two other carbon atoms.
H)a compound with a carbon atom that is bonded to both an alcohol-like group and an ether-like group.
I)a functional group consisting of a carbonyl group bonded to two other carbon atoms
J)a compound with a carbon atom that is bonded to two ether-like groups.
K) 
L)

Question 13

Which compound has the highest boiling point?

Accepted Answer

A) CH3CHO 
B) CH3CH2CHO 
C) CH3CH2OH 
D) CH3CH2CH2OH 
E) CH3COCH3 
A) CH3CHO 
B) CH3CH2CHO 
C) CH3CH2OH 
D) CH3CH2CH2OH 
E) CH3COCH3

Question 14

Which pair of compounds can react to form a hemiacetal?

Accepted Answer

A) CH3CH2CHO and CH3CH2OH 
B) CH3COCH3 and CH3CH2CHO 
C) CH3CH2CHO and CH3COOH 
D) CH3COCH3 and CH3COOH 
E) CH3COOH and CH3CH2OH 
A) CH3CH2CHO and CH3CH2OH 
B) CH3COCH3 and CH3CH2CHO 
C) CH3CH2CHO and CH3COOH 
D) CH3COCH3 and CH3COOH 
E) CH3COOH and CH3CH2OH

Question 15

Which of the following names does not fit a real compound?

Accepted Answer

A) 3-methyl-1-pentanone 
B) 2-methyl-3-pentanone 
C) 2-butanone 
D) 3-octanone 
E) All are correct. 
A) 3-methyl-1-pentanone 
B) 2-methyl-3-pentanone 
C) 2-butanone 
D) 3-octanone 
E) All are correct.

Question 16

Which observation denotes a positive Benedict's test?

Accepted Answer

A) A red-brown solution becomes clear and colorless. 
B) A red precipitate forms from a blue solution. 
C) A purple solution yields a brown precipitate. 
D) A mirror-like deposit forms from a colorless solution. 
E) A pale yellow solution with an odor of chlorine changes to a purple color. 
A) A red-brown solution becomes clear and colorless. 
B) A red precipitate forms from a blue solution. 
C) A purple solution yields a brown precipitate. 
D) A mirror-like deposit forms from a colorless solution. 
E) A pale yellow solution with an odor of chlorine changes to a purple color.

Question 17

The substance that precipitates in a positive Benedict test is ________.

Accepted Answer

A) Ag 
B) CuO 
C) Cu2O 
D) none of these 
A) Ag 
B) CuO 
C) Cu2O 
D) none of these

Question 18

In biochemical reactions,reduction of carbonyl groups is carried out by

Accepted Answer

A) NaBH4. 
B) H2. 
C) pyruvic acid. 
D) lactic acid. 
E) NADH. 
A) NaBH4. 
B) H2. 
C) pyruvic acid. 
D) lactic acid. 
E) NADH.

Question 19

Hydrolysis of an acetal will produce

Accepted Answer

A) one aldehyde or ketone + two ethers. 
B) two aldehydes or ketones + one ether. 
C) two aldehydes or ketones + one alcohol. 
D) one aldehyde or ketone + two alcohols. 
E) one aldehyde or ketone + two waters. 
A) one aldehyde or ketone + two ethers. 
B) two aldehydes or ketones + one ether. 
C) two aldehydes or ketones + one alcohol. 
D) one aldehyde or ketone + two alcohols. 
E) one aldehyde or ketone + two waters.

Question 20

What is the product of oxidation of butanal?

Accepted Answer

A) butane 
B) 2-butanol 
C) butanoic acid 
D) 1-butanol 
E) no reaction 
A) butane 
B) 2-butanol 
C) butanoic acid 
D) 1-butanol 
E) no reaction

Exam 16: Aldehydes and Ketones

The reverse reaction of acetal formation is

What is the product of oxidation of 2-butanone?

The result of a hydrolysis reaction is what?

In the Benedict's test,

Match the following. -an example of an aldol

Which compound has the lowest boiling point?

What is the product of the reduction of 3-methyl-2-pentanone?

Match the following. -an example of a ketone

Match the following. -an example of a hemiacetal

Reduction of an aldehyde produces a

What is the product of the oxidation of a ketone?

Match the following. -methanal

Which compound has the highest boiling point?

Which pair of compounds can react to form a hemiacetal?

Which of the following names does not fit a real compound?

Which observation denotes a positive Benedict's test?

The substance that precipitates in a positive Benedict test is ________.

In biochemical reactions,reduction of carbonyl groups is carried out by

Hydrolysis of an acetal will produce

What is the product of oxidation of butanal?

Matter and Measurements

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Classification and Balancing of Chemical Reactions

Chemical Reactions: Mole and Mass Relationships

Chemical Reactions: Energy, rates, and Equilibrium

Gases, liquids, and Solids

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Introduction to Organic Chemistry: Alkanes

Alkenes, alkynes, and Aromatic Compounds

Some Compounds With Oxygen, sulfur, or a Halogen

Amines

Carboxylic Acids and Their Derivatives

Amino Acids and Proteins

Enzymes and Vitamins

The Generation of Biochemical Energy

Carbohydrates

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Lipid Metabolism

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