Question 1

Which of the following is a hemiketal?

Accepted Answer

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

Question 2

To what class of compounds does glucose belong?

Accepted Answer

A) cyclic ketone 
B) cyclic aldehyde 
C) cyclic acetal 
D) cyclic hemiacetal 
E) cyclic acid 
A) cyclic ketone 
B) cyclic aldehyde 
C) cyclic acetal 
D) cyclic hemiacetal 
E) cyclic acid

Question 3

Match the following.
-hemiacetal

Accepted Answer

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

Question 4

A compound with an -OH group and an ether-like -OR group bonded to the same carbon atom a(n)

Accepted Answer

A) acetal. 
B) aldol. 
C) diol. 
D) hemiacetal. 
E) simple ether. 
A) acetal. 
B) aldol. 
C) diol. 
D) hemiacetal. 
E) simple ether.

Question 5

Which of the following is not a property of aldehydes and ketones?

Accepted Answer

A) They are polar. 
B) Most have distinctive odors. 
C) They have lower boiling points than alcohols of similar molar mass. 
D) They have higher boiling points than alkanes of similar molar mass. 
E) They cannot form hydrogen bonds with water because they have no hydrogen atoms bonded to oxygen. 
A) They are polar. 
B) Most have distinctive odors. 
C) They have lower boiling points than alcohols of similar molar mass. 
D) They have higher boiling points than alkanes of similar molar mass. 
E) They cannot form hydrogen bonds with water because they have no hydrogen atoms bonded to oxygen.

Question 6

A compound with two ether-like -OR groups bonded to the same carbon atom a(n)

Accepted Answer

A) acetal. 
B) aldol. 
C) diol. 
D) hemiacetal. 
E) simple ether. 
A) acetal. 
B) aldol. 
C) diol. 
D) hemiacetal. 
E) simple ether.

Question 7

Match the following.
-an example of an aldehyde

Accepted Answer

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

Question 8

What is the IUPAC name of the compound shown?

Accepted Answer

A) 4-heptanone 
B) 3-heptanone 
C) 5-methyl-4-hexanone 
D) 2-methyl-3-hexanone 
E) isopropyl n-propyl ketone 
A) 4-heptanone 
B) 3-heptanone 
C) 5-methyl-4-hexanone 
D) 2-methyl-3-hexanone 
E) isopropyl n-propyl ketone

Question 9

Match the following.
-ketone

Accepted Answer

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

Question 10

Match the following.
-acetal

Accepted Answer

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

Question 11

Which of the following is the correct line drawing for 2,4-dimethyl-3-pentanone?

Accepted Answer

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

Question 12

The carbonyl group is

Accepted Answer

A) a general term for any functional group involving a carbon-oxygen bond. 
B) found only in aldehydes and ketones. 
C) a functional group in which carbon and oxygen are joined by a double bond. 
D) a functional group with a 6-membered ring where at least one atom is oxygen. 
E) produced by reduction reactions of primary or secondary alcohols. 
A) a general term for any functional group involving a carbon-oxygen bond. 
B) found only in aldehydes and ketones. 
C) a functional group in which carbon and oxygen are joined by a double bond. 
D) a functional group with a 6-membered ring where at least one atom is oxygen. 
E) produced by reduction reactions of primary or secondary alcohols.

Question 13

All of the following are true concerning a two-carbon aldehyde except

Accepted Answer

A) its condensed formula is C  
-CHO. 
B) its systematic name is ethanal. 
C) its common name is acetaldehyde. 
D) it has a higher boiling point than an alcohol of similar molecular weight. 
E) its structural formula is:
  
A) its condensed formula is C  
-CHO. 
B) its systematic name is ethanal. 
C) its common name is acetaldehyde. 
D) it has a higher boiling point than an alcohol of similar molecular weight. 
E) its structural formula is:

Question 14

Which observation denotes a positive Tollens' test?

Accepted Answer

A) The light blue color of the reagent disappears. 
B) A brick-red precipitate forms. 
C) A silver deposit forms on the glass surface. 
D) A silver wire dissolves. 
E) Bubbles of oxygen gas are produced. 
A) The light blue color of the reagent disappears. 
B) A brick-red precipitate forms. 
C) A silver deposit forms on the glass surface. 
D) A silver wire dissolves. 
E) Bubbles of oxygen gas are produced.

Question 15

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 16

Which of the following is a hemiacetal?

Accepted Answer

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

Question 17

What ketone or aldehyde below would be reduced to form 2-methyl-3-pentanol?

Accepted Answer

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

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

Match the following.
-an example of an aldol

Accepted Answer

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

Question 20

What is the product of reduction 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 15: Aldehydes and Ketones

Which of the following is a hemiketal?

To what class of compounds does glucose belong?

Match the following. -hemiacetal

A compound with an -OH group and an ether-like -OR group bonded to the same carbon atom a(n)

Which of the following is not a property of aldehydes and ketones?

A compound with two ether-like -OR groups bonded to the same carbon atom a(n)

Match the following. -an example of an aldehyde

What is the IUPAC name of the compound shown?

Match the following. -ketone

Match the following. -acetal

Which of the following is the correct line drawing for 2,4-dimethyl-3-pentanone?

The carbonyl group is

All of the following are true concerning a two-carbon aldehyde except

Which observation denotes a positive Tollens' test?

The substance that precipitates in a positive Benedict test is

Which of the following is a hemiacetal?

What ketone or aldehyde below would be reduced to form 2-methyl-3-pentanol?

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

Match the following. -an example of an aldol

What is the product of reduction of butanal?

Matter and Measurements

Atoms and the Periodic Table

Ionic Compounds

Molecular Compounds

Classification and Balancing of Chemical Reactions

Chemical Reactions: Mole and Mass Relationships

Chemical Reactions: Energy, rates, and Equilibrium

Gases, liquids, and Solids

Solutions

Acids and Bases

Nuclear Chemistry

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

Carbohydrates

The Generation of Biochemical Energy

Carbohydrate Metabolism

Lipids

Lipid Metabolism

Protein and Amino Acid Metabolism

Nucleic Acids and Protein Synthesis

Genomics

Chemical Messengers: Hormones, neurotransmitters, and Drugs

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