Question 1

Which class of amines can form intermolecular hydrogen bonds?

Accepted Answer

A) 1° 
B) 2° 
C) 3° 
D) A and B 
E) all of the above 
A) 1° 
B) 2° 
C) 3° 
D) A and B 
E) all of the above D

Question 2

If methylamine reacts with hydrochloric acid,the major product will be

Accepted Answer

A) ammonium chloride. 
B) dimethylammonium chloride. 
C) methylammonium chloride. 
D) trimethylammonium chloride. 
E) methylammonium hydroxide. 
A) ammonium chloride. 
B) dimethylammonium chloride. 
C) methylammonium chloride. 
D) trimethylammonium chloride. 
E) methylammonium hydroxide. C

Question 3

Arrange the following compounds in order of increasing boiling point.List and describe the criteria that must be considered in answering this question.
Compounds
1.CH3CH2CH2CH2OH 2.CH3CH2CH2NHCH3
3.CH3CH2CH2CH2CH3 4.CH3CH2N(CH3)CH3
5.CH3CH2CH(OH)CH3

Accepted Answer

3 < 4 < 2 < 5 < 1;
Criteria considered include:
1.molar mass,but in this case all were similar
2.polarity and possibility for hydrogen bonding: #3 is nonpolar; #4 is polar but cannot form hydrogen bonds; #2 is polar,but its hydrogen bonds will be weaker than those in an alcohol; #5 is a secondary alcohol,so will form fewer hydrogen bonds than its primary isomer.

Question 4

All of the following are characteristics of alkaloids except

Accepted Answer

A) bitter tasting. 
B) physiologically active. 
C) basic. 
D) toxic to humans in high doses. 
E) pleasant smelling. 
A) bitter tasting. 
B) physiologically active. 
C) basic. 
D) toxic to humans in high doses. 
E) pleasant smelling.

Question 5

The reaction of the pyridinium ion with water is best represented as ________.

Accepted Answer

A) C5H5NH+ + H2O
 
C5H5N + H3O+ 
B) C5H5NH+ + H2O
 
C5H5NH22+ + OH- 
C) C5H5N + H2O
 
C5H4N + H3O+ 
D) C5H5N + H2O
 
C5H6NH+ 
E) none of these 
A) C5H5NH+ + H2O
 
C5H5N + H3O+ 
B) C5H5NH+ + H2O
 
C5H5NH22+ + OH- 
C) C5H5N + H2O
 
C5H4N + H3O+ 
D) C5H5N + H2O
 
C5H6NH+ 
E) none of these

Question 6

An alkaloid used in treating malaria is

Accepted Answer

A) quinine. 
B) histamine. 
C) atropine. 
D) nicotine. 
A) quinine. 
B) histamine. 
C) atropine. 
D) nicotine.

Question 7

Which of the following is a heterocyclic amine?

Accepted Answer

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

Question 8

Which compound is an example of an amine salt?

Accepted Answer

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

Question 9

Which molecule is N,N-dimethylpropylamine?

Accepted Answer

A) CH3CH2CH2CH2CH2 H2 
B) 
  
C) 
  
D) 
  
E) 
  
A) CH3CH2CH2CH2CH2 H2 
B) 
  
C) 
  
D) 
  
E)

Question 10

Which organic functional group is important for its basic properties?

Accepted Answer

A) amine 
B) aromatic 
C) carbonyl 
D) hydroxyl 
E) phenol 
A) amine 
B) aromatic 
C) carbonyl 
D) hydroxyl 
E) phenol

Question 11

Which of the following molecules is an example of a secondary amine?

Accepted Answer

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

Question 12

Which compound is a secondary amine?

Accepted Answer

A) trimethylamine 
B) diethylamine 
C) isopropylamine 
D) N,N-dimethylethylamine 
E) N-ethyl-N-methylpropylamine 
A) trimethylamine 
B) diethylamine 
C) isopropylamine 
D) N,N-dimethylethylamine 
E) N-ethyl-N-methylpropylamine

Question 13

The reaction of an amine with water is best represented by

Accepted Answer

A) R-NH2 + 2 H2O
 
R-N2- + 2 H3O+. 
B) R-NH2 + H2O
 
R-NH- + H3O+. 
C) R-NH2 + H2O
 
R-NH3+ + OH-. 
D) R-NH2 + 2 H2O
 
R-NH4+2 + 2 OH-. 
E) R-NH2 + H2O
 
R-N2- + M+ + H3O+. 
A) R-NH2 + 2 H2O
 
R-N2- + 2 H3O+. 
B) R-NH2 + H2O
 
R-NH- + H3O+. 
C) R-NH2 + H2O
 
R-NH3+ + OH-. 
D) R-NH2 + 2 H2O
 
R-NH4+2 + 2 OH-. 
E) R-NH2 + H2O
 
R-N2- + M+ + H3O+.

Question 14

Which molecule is a heterocyclic compound?

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
E) none of these 
A) 
  
B) 
  
C) 
  
D) 
  
E) none of these

Question 15

Which of these types of compounds forms salts with acids?

Accepted Answer

A) ketones 
B) amines 
C) alcohols 
D) carboxylic esters 
E) ethers 
A) ketones 
B) amines 
C) alcohols 
D) carboxylic esters 
E) ethers

Question 16

An alkaloid is best described as any

Accepted Answer

A) basic compound obtained from a plant. 
B) amide obtained from a plant. 
C) basic compound obtained from either an animal or a plant. 
D) diamine obtained from an animal. 
E) both A and B. 
A) basic compound obtained from a plant. 
B) amide obtained from a plant. 
C) basic compound obtained from either an animal or a plant. 
D) diamine obtained from an animal. 
E) both A and B.

Question 17

The boiling point of ethylamine is higher than that of propane but lower than that of 1-propanol.This means that

Accepted Answer

A) a molecule of ethylamine cannot form a hydrogen bond with another molecule of itself 
B) hydrogen bonds between two amino groups are weaker than those between two alcohol groups 
C) the intermolecular forces between two amine molecules are only dipole-dipole 
D) the intermolecular forces between two amine molecules are ionic in nature 
E) the intermolecular forces between two amine molecules are only London dispersion forces. 
A) a molecule of ethylamine cannot form a hydrogen bond with another molecule of itself 
B) hydrogen bonds between two amino groups are weaker than those between two alcohol groups 
C) the intermolecular forces between two amine molecules are only dipole-dipole 
D) the intermolecular forces between two amine molecules are ionic in nature 
E) the intermolecular forces between two amine molecules are only London dispersion forces.

Question 18

What is the most important chemical property of amines?

Accepted Answer

A) They are weak bases. 
B) They are strong bases. 
C) They are weak acids. 
D) They are strong acids. 
E) They are oxidizing acids. 
A) They are weak bases. 
B) They are strong bases. 
C) They are weak acids. 
D) They are strong acids. 
E) They are oxidizing acids.

Question 19

When an amine behaves as a base it ________ a hydrogen ion to form a(an)________ ion.

Accepted Answer

A) loses; hydronium 
B) loses; ammonium 
C) loses; hydroxide 
D) gains; ammonium 
E) gains; hydronium 
A) loses; hydronium 
B) loses; ammonium 
C) loses; hydroxide 
D) gains; ammonium 
E) gains; hydronium

Question 20

Which type of amine will react with mineral acids to form soluble ammonium salts?

Accepted Answer

A) 1° 
B) 2° 
C) 3° 
D) A and B 
E) A,B and C 
A) 1° 
B) 2° 
C) 3° 
D) A and B 
E) A,B and C

Exam 15: Amines

Which class of amines can form intermolecular hydrogen bonds?

If methylamine reacts with hydrochloric acid,the major product will be

Arrange the following compounds in order of increasing boiling point.List and describe the criteria that must be considered in answering this question. Compounds 1.CH3CH2CH2CH2OH 2.CH3CH2CH2NHCH3 3.CH3CH2CH2CH2CH3 4.CH3CH2N(CH3)CH3 5.CH3CH2CH(OH)CH3

All of the following are characteristics of alkaloids except

The reaction of the pyridinium ion with water is best represented as ________.

An alkaloid used in treating malaria is

Which of the following is a heterocyclic amine?

Which compound is an example of an amine salt?

Which molecule is N,N-dimethylpropylamine?

Which organic functional group is important for its basic properties?

Which of the following molecules is an example of a secondary amine?

Which compound is a secondary amine?

The reaction of an amine with water is best represented by

Which molecule is a heterocyclic compound?

Which of these types of compounds forms salts with acids?

An alkaloid is best described as any

The boiling point of ethylamine is higher than that of propane but lower than that of 1-propanol.This means that

What is the most important chemical property of amines?

When an amine behaves as a base it ________ a hydrogen ion to form a(an)________ ion.

Which type of amine will react with mineral acids to form soluble ammonium salts?

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

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Amino Acids and Proteins

Enzymes and Vitamins

The Generation of Biochemical Energy

Carbohydrates

Carbohydrate Metabolism

Lipids

Lipid Metabolism

Nucleic Acids and Protein Synthesis

Genomics

Protein and Amino Acid Metabolism

Chemical Messengers: Hormones, neurotransmitters, and Drugs

Body Fluids

Filters

Arrange the following compounds in order of increasing boiling point.List and describe the criteria that must be considered in answering this question. Compounds 1.CH₃CH₂CH₂CH₂OH 2.CH₃CH₂CH₂NHCH₃ 3.CH₃CH₂CH₂CH₂CH₃4.CH₃CH₂N(CH₃)CH₃ 5.CH₃CH₂CH(OH)CH₃

When an amine behaves as a base it a hydrogen ion to form a(an) ion.