Question 1

Which of the following is NOT a general characteristic of amides?

Accepted Answer

A) They have high boiling points. 
B) Intermolecular hydrogen bonds are present. 
C) Solutions in water are basic. 
D) Most are solids at room temperature. 
E) C=O and C-N bonds involve resonance. 
A) They have high boiling points. 
B) Intermolecular hydrogen bonds are present. 
C) Solutions in water are basic. 
D) Most are solids at room temperature. 
E) C=O and C-N bonds involve resonance.

Question 2

In addition to an amine, what other type of compound is formed in the amide hydrolysis reaction shown? amide + strong base → amine + ?

Accepted Answer

A) amine 
B) alkylammonium ion 
C) carboxylic acid salt 
D) amino acid 
E) nitro compound 
A) amine 
B) alkylammonium ion 
C) carboxylic acid salt 
D) amino acid 
E) nitro compound

Question 3

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 4

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 5

Acid-catalyzed hydrolysis of amides is an important reaction because it represents the first step in the digestion of dietary protein.Which of the following compounds is formed as a result of the acid-catalyzed hydrolysis of N-methylbutanamide?

Accepted Answer

A) CH3CHCH2CH2CH2CH3 
B) NH2CH2CH2CH2CH3 
C) CH3NH+3 
D) CH3NH2 
E)    
A) CH3CHCH2CH2CH2CH3 
B) NH2CH2CH2CH2CH3 
C) CH3NH+3 
D) CH3NH2 
E)

Question 6

What is the charge usually found on a quaternary ammonium ion?

Accepted Answer

A) +1 
B) +2 
C) +4 
D) −1 
E) −4 
A) +1 
B) +2 
C) +4 
D) −1 
E) −4

Question 7

What is the common name of the compound shown?

Accepted Answer

A) N-formic acid 
B) formamide 
C) methanamide 
D) acetamide 
E) benzamide 
A) N-formic acid 
B) formamide 
C) methanamide 
D) acetamide 
E) benzamide

Question 8

What is the IUPAC name of ethylamine?

Accepted Answer

A) N-ethanamine 
B) ethyleneamine 
C) ethanamine 
D) 1-ethaneamine 
E) None of the choices are correct. 
A) N-ethanamine 
B) ethyleneamine 
C) ethanamine 
D) 1-ethaneamine 
E) None of the choices are correct.

Question 9

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 10

Aniline is another acceptable name for benzenamine.

Accepted Answer

A) True 
 B)False

Question 11

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 12

What is the name of the species represented by the structure R4N+Cl−?

Accepted Answer

A) a quaternary ammonium salt 
B) an alkaloid 
C) an amine 
D) an alkylammonium salt 
E) a porphyrin 
A) a quaternary ammonium salt 
B) an alkaloid 
C) an amine 
D) an alkylammonium salt 
E) a porphyrin

Question 13

Bupropion is used medicinally as an antidepressant, and as an aide in smoking cessation.The carbonyl group in this compound is part of what functional group family?

Accepted Answer

A) amide 
B) carboxylic acid chloride 
C) ketone 
D) ester 
E) lactam 
A) amide 
B) carboxylic acid chloride 
C) ketone 
D) ester 
E) lactam

Question 14

What is the common name of 2-propanamine?

Accepted Answer

A) propylamine 
B) isopropylamine 
C) aminopropane 
D) propylammonia 
E) propylammonium 
A) propylamine 
B) isopropylamine 
C) aminopropane 
D) propylammonia 
E) propylammonium

Question 15

What class of biological compounds contains amide bonds as the central feature in their structure?

Accepted Answer

A) lipids 
B) carbohydrates 
C) proteins 
D) nucleic acids 
E) None of these are correct. 
A) lipids 
B) carbohydrates 
C) proteins 
D) nucleic acids 
E) None of these are correct.

Question 16

What is the IUPAC name of the compound shown?

Accepted Answer

A) N-propylhexamide 
B) aminohexyl propanamide 
C) aminopropyl pentanamide 
D) N-hexylpropamide 
E) N-propylhexanamide 
A) N-propylhexamide 
B) aminohexyl propanamide 
C) aminopropyl pentanamide 
D) N-hexylpropamide 
E) N-propylhexanamide

Question 17

Which of the following does NOT have hydrogen bonding between molecules?

Accepted Answer

A) ammonia 
B) primary amines 
C) secondary amines 
D) tertiary amines 
E) All of the choices are correct. 
A) ammonia 
B) primary amines 
C) secondary amines 
D) tertiary amines 
E) All of the choices are correct.

Question 18

Which of the following is a property of amphetamines?

Accepted Answer

A) central nervous system stimulant 
B) analgesic 
C) anesthetic 
D) decongestant 
E) Both analgesic and anesthetic are correct. 
A) central nervous system stimulant 
B) analgesic 
C) anesthetic 
D) decongestant 
E) Both analgesic and anesthetic are correct.

Question 19

Socrates used coniine, an alkaloid extracted from the poison hemlock plant, to end his life.How is this nitrogen-containing compound best classified?

Accepted Answer

A) cyclic amide 
B) primary, aromatic amine 
C) secondary, heterocyclic amine 
D) tertiary amine 
E) lactam 
A) cyclic amide 
B) primary, aromatic amine 
C) secondary, heterocyclic amine 
D) tertiary amine 
E) lactam

Question 20

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

Exam 15: Amines and Amides

Which of the following is NOT a general characteristic of amides?

In addition to an amine, what other type of compound is formed in the amide hydrolysis reaction shown? amide + strong base → 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.

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

Acid-catalyzed hydrolysis of amides is an important reaction because it represents the first step in the digestion of dietary protein.Which of the following compounds is formed as a result of the acid-catalyzed hydrolysis of N-methylbutanamide?

What is the charge usually found on a quaternary ammonium ion?

What is the common name of the compound shown?

What is the IUPAC name of ethylamine?

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

Aniline is another acceptable name for benzenamine.

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

What is the name of the species represented by the structure R4N+Cl−?

Bupropion is used medicinally as an antidepressant, and as an aide in smoking cessation.The carbonyl group in this compound is part of what functional group family?

What is the common name of 2-propanamine?

What class of biological compounds contains amide bonds as the central feature in their structure?

What is the IUPAC name of the compound shown?

Which of the following does NOT have hydrogen bonding between molecules?

Which of the following is a property of amphetamines?

Socrates used coniine, an alkaloid extracted from the poison hemlock plant, to end his life.How is this nitrogen-containing compound best classified?

What is the IUPAC name of the following compound?

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 Saturated Hydrocarbons

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.

What is the name of the species represented by the structure R₄N⁺Cl⁻?