Question 1

Which of the following is NOT a characteristic associated with undecane, an 11-carbon straight chain alkane?

Accepted Answer

A) hydrogen bonding 
B) low water solubility 
C) density less than water 
D) flammable liquid 
E) nonpolar 
A) hydrogen bonding 
B) low water solubility 
C) density less than water 
D) flammable liquid 
E) nonpolar A

Question 2

Which name describes a three-carbon alkane?

Accepted Answer

A) pentane 
B) butane 
C) propane 
D) heptane 
E) methane 
A) pentane 
B) butane 
C) propane 
D) heptane 
E) methane C

Question 3

Which compound is an isomer of 2-methylpropane?

Accepted Answer

A) 2-chloropropane 
B) 2,2-dimethylpropane 
C) propane 
D) cyclobutane 
E) butane 
A) 2-chloropropane 
B) 2,2-dimethylpropane 
C) propane 
D) cyclobutane 
E) butane E

Question 4

The carbonyl group is a functional group found in many different types of compounds.What is the general structure of the carbonyl group?

Accepted Answer

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

Question 5

Which alkyl group is a secondary alkyl group?

Accepted Answer

A)    
B)    
C)    
D)    
E) All of these are correct. 
A)    
B)    
C)    
D)    
E) All of these are correct.

Question 6

Which of the following is the condensed formula of 3-methylheptane?

Accepted Answer

A) CH3CH2CH(CH3)CH2CH2CH2CH3 
B) CH3CH2CH2(CH3)CH2CH2CH2CH3 
C) CH3CH(CH3)CH2CH2CH2CH2CH3 
D) CH3(CH3)CHCH2CH2CH2CH3 
E) None of the choices are correct. 
A) CH3CH2CH(CH3)CH2CH2CH2CH3 
B) CH3CH2CH2(CH3)CH2CH2CH2CH3 
C) CH3CH(CH3)CH2CH2CH2CH2CH3 
D) CH3(CH3)CHCH2CH2CH2CH3 
E) None of the choices are correct.

Question 7

The name of an organic compound is 2-methyl-4-propyloctane.What information about the structure of this compound is FALSE?

Accepted Answer

A) It is a branched alkane. 
B) There are eight carbons in the parent chain. 
C) There is a one-carbon alkyl group on carbon 2 of the parent chain. 
D) There is a three-carbon alkyl group on carbon 4 of the parent chain. 
E) None of the above statements is false. 
A) It is a branched alkane. 
B) There are eight carbons in the parent chain. 
C) There is a one-carbon alkyl group on carbon 2 of the parent chain. 
D) There is a three-carbon alkyl group on carbon 4 of the parent chain. 
E) None of the above statements is false.

Question 8

What is the molecular formula of butane?

Accepted Answer

A) C3H8 
B) C4H8 
C) C4H10 
D) C2H6 
E) None of the choices are correct. 
A) C3H8 
B) C4H8 
C) C4H10 
D) C2H6 
E) None of the choices are correct.

Question 9

What is the IUPAC name of the following compound?

Accepted Answer

A) dibromopentane 
B) 2,4-dibromopentane 
C) 2,4-dibromohexane 
D) 2,5-dibromohexane 
E) 1-bromo-2,5-methylbromopentane 
A) dibromopentane 
B) 2,4-dibromopentane 
C) 2,4-dibromohexane 
D) 2,5-dibromohexane 
E) 1-bromo-2,5-methylbromopentane

Question 10

The compound shown below is classified as what type?

Accepted Answer

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

Question 11

What additional condition or reagent is necessary for methane to react with chlorine according to the reaction equation shown below? CH4 + Cl2 → CH3Cl + HCl

Accepted Answer

A) enzyme 
B) water 
C) light or high temperature 
D) acid or base 
E) complete darkness 
A) enzyme 
B) water 
C) light or high temperature 
D) acid or base 
E) complete darkness

Question 12

Which compound is an isomer of butane?

Accepted Answer

A) cyclobutane 
B) CH3CH(CH3)2 
C) benzene 
D) CH3CHBrCH2CH3 
E) 2,2-dimethylpropane 
A) cyclobutane 
B) CH3CH(CH3)2 
C) benzene 
D) CH3CHBrCH2CH3 
E) 2,2-dimethylpropane

Question 13

The chair and boat conformations of cyclohexane are shown below.Which statement best explains why the chair conformation is more stable than the boat conformation?

Accepted Answer

A) The hydrogen atoms in the chair conformation are all staggered, which minimizes the repulsion of the bonding electrons. 
B) The carbon atoms in the chair conformation are all eclipsed, which provides for the ideal bond angle of 109.5°. 
C) The carbon atoms in the chair conformation are closer together than in the boat conformation, which provides for stronger C-C bonds. 
D) The hydrogen atoms in the chair conformation are closer together than in the boat conformation, which provides for stronger C-H bonds. 
E) The C-C bonds in the chair conformation are all staggered, which maximizes the energy of the molecule. 
A) The hydrogen atoms in the chair conformation are all staggered, which minimizes the repulsion of the bonding electrons. 
B) The carbon atoms in the chair conformation are all eclipsed, which provides for the ideal bond angle of 109.5°. 
C) The carbon atoms in the chair conformation are closer together than in the boat conformation, which provides for stronger C-C bonds. 
D) The hydrogen atoms in the chair conformation are closer together than in the boat conformation, which provides for stronger C-H bonds. 
E) The C-C bonds in the chair conformation are all staggered, which maximizes the energy of the molecule.

Question 14

What is the IUPAC name of the following compound?

Accepted Answer

A) 2,4,4-trimethylpentane 
B) 2,2,4-octane 
C) 2,2,4-trimethylpentane 
D) trimethylpentane 
E) None of the choices are correct. 
A) 2,4,4-trimethylpentane 
B) 2,2,4-octane 
C) 2,2,4-trimethylpentane 
D) trimethylpentane 
E) None of the choices are correct.

Question 15

What is the source of most of the synthetic organic compounds that are used today?

Accepted Answer

A) methane 
B) trees 
C) petroleum 
D) natural gas 
E) coal 
A) methane 
B) trees 
C) petroleum 
D) natural gas 
E) coal

Question 16

What is the proper name of the following compound?

Accepted Answer

A) trans-dichloropentane 
B) cis-dichlorocyclopentane 
C) trans-1,2-dichlorocyclopentane 
D) staggered-1,2-dichlorocyclopentane 
E) anti-1,2-chlorocyclopentane 
A) trans-dichloropentane 
B) cis-dichlorocyclopentane 
C) trans-1,2-dichlorocyclopentane 
D) staggered-1,2-dichlorocyclopentane 
E) anti-1,2-chlorocyclopentane

Question 17

Carbon monoxide may be produced in the partial (incomplete) combustion of methane.

Accepted Answer

A) True 
 B)False

Question 18

Which correctly describes the geometry and bond angles around the indicated carbon in the structure below?

Accepted Answer

A) trigonal planar; 120° 
B) tetrahedral, 109.5° 
C) trigonal pyramidal, 109.5° 
D) tetrahedral, 90° 
E) tetravalent, 120° 
A) trigonal planar; 120° 
B) tetrahedral, 109.5° 
C) trigonal pyramidal, 109.5° 
D) tetrahedral, 90° 
E) tetravalent, 120°

Question 19

There is only one stable alkane of formula C4H10.

Accepted Answer

A) True 
 B)False

Question 20

Which compound is an isomer of 1,1-dibromoethane?

Accepted Answer

A) Br2CHCH3 
B) CH2BrCH2Br 
C) CH3CHBr2 
D) CHBr2CHBr2 
E) CH3BrCH3Br 
A) Br2CHCH3 
B) CH2BrCH2Br 
C) CH3CHBr2 
D) CHBr2CHBr2 
E) CH3BrCH3Br

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

Which of the following is NOT a characteristic associated with undecane, an 11-carbon straight chain alkane?

Which name describes a three-carbon alkane?

Which compound is an isomer of 2-methylpropane?

The carbonyl group is a functional group found in many different types of compounds.What is the general structure of the carbonyl group?

Which alkyl group is a secondary alkyl group?

Which of the following is the condensed formula of 3-methylheptane?

The name of an organic compound is 2-methyl-4-propyloctane.What information about the structure of this compound is FALSE?

What is the molecular formula of butane?

What is the IUPAC name of the following compound?

The compound shown below is classified as what type?

What additional condition or reagent is necessary for methane to react with chlorine according to the reaction equation shown below? CH4 + Cl2 → CH3Cl + HCl

Which compound is an isomer of butane?

The chair and boat conformations of cyclohexane are shown below.Which statement best explains why the chair conformation is more stable than the boat conformation?

What is the IUPAC name of the following compound?

What is the source of most of the synthetic organic compounds that are used today?

What is the proper name of the following compound?

Carbon monoxide may be produced in the partial (incomplete) combustion of methane.

Which correctly describes the geometry and bond angles around the indicated carbon in the structure below?

There is only one stable alkane of formula C4H10.

Which compound is an isomer of 1,1-dibromoethane?

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

What additional condition or reagent is necessary for methane to react with chlorine according to the reaction equation shown below? CH₄ + Cl₂ → CH₃Cl + HCl

There is only one stable alkane of formula C₄H₁₀.