Question 1

Which of the following compounds are related as geometric isomers?

Accepted Answer

A) 1 and 2 
B) 1 and 3 
C) 1 and 4 
D) 2 and 3 
E) All are related as geometric isomers. 
A) 1 and 2 
B) 1 and 3 
C) 1 and 4 
D) 2 and 3 
E) All are related as geometric isomers.

Question 2

Which of the following statements concerning conformational isomers is FALSE?

Accepted Answer

A) Conformational isomers are different spatial arrangements of the same molecule, formed by rotation around single bonds. 
B) Conformational isomers rapidly interconvert, and cannot be physically separated from each other. 
C) The staggered and the eclipsed conformation are two types of conformational isomers of alkanes. 
D) The staggered conformation is more stable than the eclipsed conformation, because in the staggered conformation electron repulsion is maximized. 
E) The boat conformation and the chair conformation are two conformational isomers of cyclohexane; the chair conformation is the more stable of the two. 
A) Conformational isomers are different spatial arrangements of the same molecule, formed by rotation around single bonds. 
B) Conformational isomers rapidly interconvert, and cannot be physically separated from each other. 
C) The staggered and the eclipsed conformation are two types of conformational isomers of alkanes. 
D) The staggered conformation is more stable than the eclipsed conformation, because in the staggered conformation electron repulsion is maximized. 
E) The boat conformation and the chair conformation are two conformational isomers of cyclohexane; the chair conformation is the more stable of the two.

Question 3

Butanone (structure shown) may be classified as what type of compound?

Accepted Answer

A) aldehyde 
B) ketone 
C) ether 
D) carboxylic acid 
E) ester 
A) aldehyde 
B) ketone 
C) ether 
D) carboxylic acid 
E) ester

Question 4

The carboxyl functional group is found in all ketones.

Accepted Answer

A) True 
 B)False

Question 5

What is the IUPAC name of the following compound?

Accepted Answer

A) 2-bromo-2-methylpropane 
B) 2-bromoisobutane 
C) 2,2-dibromomethylpropane 
D) 2-methyl-2-bromopropane 
E) bromomethylbutane 
A) 2-bromo-2-methylpropane 
B) 2-bromoisobutane 
C) 2,2-dibromomethylpropane 
D) 2-methyl-2-bromopropane 
E) bromomethylbutane

Question 6

An alkane used as a lubricant contains 25 carbon atoms.How many hydrogen atoms are present in its structure?

Accepted Answer

A) 25 
B) 27 
C) 50 
D) 52 
E) It is impossible to predict. 
A) 25 
B) 27 
C) 50 
D) 52 
E) It is impossible to predict.

Question 7

What is the IUPAC name of the compound below?

Accepted Answer

A) methylhexane 
B) methylcyclohexane 
C) toluene 
D) hexylmethane 
E) methylbenzene 
A) methylhexane 
B) methylcyclohexane 
C) toluene 
D) hexylmethane 
E) methylbenzene

Question 8

Which of the following is the monohalogenated product that results when cyclopentane undergoes chlorination according to the reaction below?

Accepted Answer

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

Question 9

Which of the following is the correct line formula for methylbutane?

Accepted Answer

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

Question 10

What functional groups are shown below?

Accepted Answer

A) alkoxy group, amine 
B) carbonyl, aldehyde 
C) hydroxyl group, ammonia 
D) carbonyl group, amine 
E) None of the choices are correct. 
A) alkoxy group, amine 
B) carbonyl, aldehyde 
C) hydroxyl group, ammonia 
D) carbonyl group, amine 
E) None of the choices are correct.

Question 11

The propyl group is CH3CH2CH2-.

Accepted Answer

A) True 
 B)False

Question 12

Benzene may be represented by the line formula below.What is the molecular formula of benzene?

Accepted Answer

A) C12H6 
B) C6H12 
C) C6H6 
D) C6H14 
E) C6 
A) C12H6 
B) C6H12 
C) C6H6 
D) C6H14 
E) C6

Question 13

What is the balanced equation for the complete combustion of cyclooctane?

Accepted Answer

A) C8H18 + 12O2 → 8CO2 + 9H2O 
B) C8H16 + O2 → CO2 + H2O 
C) 2C8H12 + 24O2 → 16CO2 + 12H2O 
D) C8H16 + 12O2 → 8CO2 + 8H2O 
E) C8H16 + 8O2 → 8CO + 8H2O 
A) C8H18 + 12O2 → 8CO2 + 9H2O 
B) C8H16 + O2 → CO2 + H2O 
C) 2C8H12 + 24O2 → 16CO2 + 12H2O 
D) C8H16 + 12O2 → 8CO2 + 8H2O 
E) C8H16 + 8O2 → 8CO + 8H2O

Question 14

What type(s) of carbon-carbon bonds are never found in a saturated hydrocarbon?

Accepted Answer

A) single bonds 
B) single and double bonds 
C) double and triple bonds 
D) single, double, and triple bonds 
E) None of the choices are correct. 
A) single bonds 
B) single and double bonds 
C) double and triple bonds 
D) single, double, and triple bonds 
E) None of the choices are correct.

Question 15

How does the molecular formula of a cycloalkane differ from that of the corresponding alkane?

Accepted Answer

A) The alkane has two fewer hydrogen atoms in its formula. 
B) The cycloalkane has one fewer hydrogen atom in its formula. 
C) The cycloalkane has one fewer carbon in its formula. 
D) The cycloalkane has two fewer hydrogen atoms in its formula. 
E) The alkane has two more carbon atoms in its formula. 
A) The alkane has two fewer hydrogen atoms in its formula. 
B) The cycloalkane has one fewer hydrogen atom in its formula. 
C) The cycloalkane has one fewer carbon in its formula. 
D) The cycloalkane has two fewer hydrogen atoms in its formula. 
E) The alkane has two more carbon atoms in its formula.

Question 16

The chair conformation of cyclohexane is more stable than the boat conformation.

Accepted Answer

A) True 
 B)False

Question 17

Which is the correct order of melting points for the following alkanes, from highest temperature to lowest temperature?

Accepted Answer

A) nonane > hexane > methane > ethane 
B) hexane > nonane > ethane > methane 
C) nonane > hexane > ethane > methane 
D) nonane > ethane > hexane > methane 
E) methane > ethane > hexane > nonane 
A) nonane > hexane > methane > ethane 
B) hexane > nonane > ethane > methane 
C) nonane > hexane > ethane > methane 
D) nonane > ethane > hexane > methane 
E) methane > ethane > hexane > nonane

Question 18

Which compound(s) below contain substituents that are trans?

Accepted Answer

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

Question 19

What is the IUPAC name of the following compound?

Accepted Answer

A) 2,2-dimethylpropane 
B) 2-methylbutane 
C) dimethylbutane 
D) 2-hydro-2-methylbutane 
E) isopropylethane 
A) 2,2-dimethylpropane 
B) 2-methylbutane 
C) dimethylbutane 
D) 2-hydro-2-methylbutane 
E) isopropylethane

Question 20

Which compound is classified as an ether?

Accepted Answer

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

Exam 10: An Introduction to Organic Chemistry- the Saturated Hydrocarbons

Which of the following compounds are related as geometric isomers?

Which of the following statements concerning conformational isomers is FALSE?

Butanone (structure shown) may be classified as what type of compound?

The carboxyl functional group is found in all ketones.

What is the IUPAC name of the following compound?

An alkane used as a lubricant contains 25 carbon atoms.How many hydrogen atoms are present in its structure?

What is the IUPAC name of the compound below?

Which of the following is the monohalogenated product that results when cyclopentane undergoes chlorination according to the reaction below?

Which of the following is the correct line formula for methylbutane?

What functional groups are shown below?

The propyl group is CH3CH2CH2-.

Benzene may be represented by the line formula below.What is the molecular formula of benzene?

What is the balanced equation for the complete combustion of cyclooctane?

What type(s) of carbon-carbon bonds are never found in a saturated hydrocarbon?

How does the molecular formula of a cycloalkane differ from that of the corresponding alkane?

The chair conformation of cyclohexane is more stable than the boat conformation.

Which is the correct order of melting points for the following alkanes, from highest temperature to lowest temperature?

Which compound(s) below contain substituents that are trans?

What is the IUPAC name of the following compound?

Which compound is classified as an ether?

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

The Unsaturated Hydrocarbons- Alkenes, Alkynes, and Aromatics

Alcohols, Phenols, Thiols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Carboxylic Acid Derivatives

Amines and Amides

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

The propyl group is CH₃CH₂CH₂-.