Question 1

N-methyl-1-propanamine contains a methyl group,hydrogen,and a propyl group attached to a nitrogen atom.

Accepted Answer

A) True 
 B)False

Question 2

Why is the bond between N and H in amines a polar bond?

Accepted Answer

A) Hydrogen is more electronegative. 
B) Nitrogen is more electropositive. 
C) Nitrogen is more electronegative. 
D) Hydrogen is electrophilic. 
E) Nitrogen is electrophilic. 
A) Hydrogen is more electronegative. 
B) Nitrogen is more electropositive. 
C) Nitrogen is more electronegative. 
D) Hydrogen is electrophilic. 
E) Nitrogen is electrophilic.

Question 3

Which of the following is NOT a neurotransmitter in the human body?

Accepted Answer

A) serotonin 
B) acetylcholine 
C) histamine 
D) aspartame 
E) epinephrine 
A) serotonin 
B) acetylcholine 
C) histamine 
D) aspartame 
E) epinephrine

Question 4

Which of the following correctly represents how ethylamine would exist when dissolved in an acidic solution?

Accepted Answer

A) CH3CH2NH2 
B) CH3CH2NH− 
C) 
  
D) 
  
E) 
  
A) CH3CH2NH2 
B) CH3CH2NH− 
C) 
  
D) 
  
E)

Question 5

Which of the following is NOT a valid statement about the compound 4-nonanamine?

Accepted Answer

A) It is a nitrogen-containing compound. 
B) It is a primary amine. 
C) It contains nine carbons in a continuous chain. 
D) It contains a carbonyl group on the fourth carbon of the carbon chain. 
E) It is largely nonpolar. 
A) It is a nitrogen-containing compound. 
B) It is a primary amine. 
C) It contains nine carbons in a continuous chain. 
D) It contains a carbonyl group on the fourth carbon of the carbon chain. 
E) It is largely nonpolar.

Question 6

The amine morphine is an analgesic.

Accepted Answer

A) True 
 B)False

Question 7

What subclass of amines contains at least one nitrogen atom in a ring structure?

Accepted Answer

A) aromatic 
B) aliphatic 
C) secondary 
D) tertiary 
E) heterocyclic 
A) aromatic 
B) aliphatic 
C) secondary 
D) tertiary 
E) heterocyclic

Question 8

Which synthetic amide compounds are used as sedatives and as anticonvulsants?

Accepted Answer

A) amides 
B) serotonins 
C) epinephrines 
D) amphetamines 
E) barbiturates 
A) amides 
B) serotonins 
C) epinephrines 
D) amphetamines 
E) barbiturates

Question 9

What two products are formed in the hydrolysis reaction shown below?

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
 $\mathrm{Na}^{+}+\mathrm{NH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3}$ 
E) 
 $+\mathrm{HOCH}_{2} \mathrm{CH}_{3}$ 
A) 
  
B) 
  
C) 
  
D) 
 $\mathrm{Na}^{+}+\mathrm{NH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3}$ 
E) 
 $+\mathrm{HOCH}_{2} \mathrm{CH}_{3}$

Question 10

Which class of naturally occurring compounds has one or more nitrogen containing heterocyclic rings and includes many compounds that have medicinal and physiological effects?

Accepted Answer

A) analgesics 
B) alkaloids 
C) pheromones 
D) nitrosamines 
E) carcinogens 
A) analgesics 
B) alkaloids 
C) pheromones 
D) nitrosamines 
E) carcinogens

Question 11

4-Amino butanoic acid (common name GABA)is a neurotransmitter found in the brain's nerve cells.Which of the following properly represents the structure of this compound?

Accepted Answer

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

Question 12

Which of the following is NOT a medical use of amphetamines?

Accepted Answer

A) appetite suppressant 
B) antihistamine 
C) antidepressant 
D) treatment of epilepsy 
E) diet pills 
A) appetite suppressant 
B) antihistamine 
C) antidepressant 
D) treatment of epilepsy 
E) diet pills

Question 13

What is the IUPAC name of the following compound?

Accepted Answer

A) dimethylmethanamine 
B) dimethylaminomethane 
C) N-methylethanamine 
D) trimethylamine 
E) N,N-dimethylmethanamine 
A) dimethylmethanamine 
B) dimethylaminomethane 
C) N-methylethanamine 
D) trimethylamine 
E) N,N-dimethylmethanamine

Question 14

For compounds of similar molecular weight,which of the following types would have the highest boiling point?

Accepted Answer

A) alkane 
B) ether 
C) primary amine 
D) secondary amine 
E) tertiary amine 
A) alkane 
B) ether 
C) primary amine 
D) secondary amine 
E) tertiary amine

Question 15

Which of the following would NOT be classified as a primary amine?

Accepted Answer

A) aniline 
B) 1-pentanamine 
C) 2-pentanamine 
D) N-methyl-2-pentanamine 
E) 3-methyl-2-pentanamine 
A) aniline 
B) 1-pentanamine 
C) 2-pentanamine 
D) N-methyl-2-pentanamine 
E) 3-methyl-2-pentanamine

Question 16

When the amine RNH2 (where R is a 12-carbon alkyl chain)is neutralized with aqueous HCl,the compound RNH3+Cl- forms.Briefly predict,with reasons,the solubilities of RNH2 and RNH3+Cl- in water.

Accepted Answer

A) Both are insoluble due to the hydrophobic long carbon chain. 
B) Both are soluble because both contain polar N-H bonds. 
C) RNH2 is insoluble due to the long hydrophobic carbon chain,but RNH3+Cl- is soluble due to the ionic part of the compound. 
D) RNH2 is soluble due to the polarity of the N-H bond.The salt is insoluble because most chloride salts are insoluble in water. 
E) None of the choices are correct. 
A) Both are insoluble due to the hydrophobic long carbon chain. 
B) Both are soluble because both contain polar N-H bonds. 
C) RNH2 is insoluble due to the long hydrophobic carbon chain,but RNH3+Cl- is soluble due to the ionic part of the compound. 
D) RNH2 is soluble due to the polarity of the N-H bond.The salt is insoluble because most chloride salts are insoluble in water. 
E) None of the choices are correct.

Question 17

What is the physical state of most amides at room temperature?

Accepted Answer

A) solid 
B) liquid 
C) gas 
D) Some amides are solid,some are liquids,and some are gases 
E) Amides are solid or liquids,but never gases. 
A) solid 
B) liquid 
C) gas 
D) Some amides are solid,some are liquids,and some are gases 
E) Amides are solid or liquids,but never gases.

Question 18

Amines react with water to form alkylammonium salts.

Accepted Answer

A) True 
 B)False

Question 19

Amines are organic derivatives of what inorganic compound?

Accepted Answer

A) nitrous oxide 
B) ammonia 
C) nitrogen dioxide 
D) sodium nitrite 
E) sodium nitrate 
A) nitrous oxide 
B) ammonia 
C) nitrogen dioxide 
D) sodium nitrite 
E) sodium nitrate

Question 20

What two kinds of organic compounds can be reduced in the laboratory to prepare amines?

Accepted Answer

A) amides and purines 
B) nitrosamines and amides 
C) phenylamines and phenylnitro compounds 
D) amides and nitro compounds 
E) amides and aldehydes 
A) amides and purines 
B) nitrosamines and amides 
C) phenylamines and phenylnitro compounds 
D) amides and nitro compounds 
E) amides and aldehydes

Exam 15: Amines and Amides

N-methyl-1-propanamine contains a methyl group,hydrogen,and a propyl group attached to a nitrogen atom.

Why is the bond between N and H in amines a polar bond?

Which of the following is NOT a neurotransmitter in the human body?

Which of the following correctly represents how ethylamine would exist when dissolved in an acidic solution?

Which of the following is NOT a valid statement about the compound 4-nonanamine?

The amine morphine is an analgesic.

What subclass of amines contains at least one nitrogen atom in a ring structure?

Which synthetic amide compounds are used as sedatives and as anticonvulsants?

What two products are formed in the hydrolysis reaction shown below?

Which class of naturally occurring compounds has one or more nitrogen containing heterocyclic rings and includes many compounds that have medicinal and physiological effects?

4-Amino butanoic acid (common name GABA)is a neurotransmitter found in the brain's nerve cells.Which of the following properly represents the structure of this compound?

Which of the following is NOT a medical use of amphetamines?

What is the IUPAC name of the following compound?

For compounds of similar molecular weight,which of the following types would have the highest boiling point?

Which of the following would NOT be classified as a primary amine?

When the amine RNH2 (where R is a 12-carbon alkyl chain)is neutralized with aqueous HCl,the compound RNH3+Cl- forms.Briefly predict,with reasons,the solubilities of RNH2 and RNH3+Cl- in water.

What is the physical state of most amides at room temperature?

Amines react with water to form alkylammonium salts.

Amines are organic derivatives of what inorganic compound?

What two kinds of organic compounds can be reduced in the laboratory to prepare amines?

Chemistry - Methods and Measurement

The Structure of the Atom and the Periodic Table

Structure and Properties of Ionic and Covalent Compounds

Calculations, chemical Changes, and the Chemical Equation

States of Matter: Gases, liquids, and Solids

Solutions

Energy,rate and Equilibrium

Acids and Bases

The Nucleus, radioactivity, and Nuclear Medicine

An Introduction to Organic Chemistry

The Unsaturated Hydrocarbons: Alkenes, alkynes, and Aromatics

Alcohols, phenols, thiols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Carboxylic Acid Derivatives

Carbohydrates

Lipids and Their Functions in Biochemical Systems

Protein Structure and Function

Enzymes

Introduction to Molecular Genetics

Carbohydrate Metabolism

Aerobic Respiration and Energy Production

Fatty Acid Metabolism

Filters

When the amine RNH₂ (where R is a 12-carbon alkyl chain)is neutralized with aqueous HCl,the compound RNH₃⁺Cl^- forms.Briefly predict,with reasons,the solubilities of RNH₂ and RNH₃⁺Cl^- in water.