Question 1

An organic compound composed of carbon and hydrogen connected only by single bonds is an

Accepted Answer

A)  alkane. 
B)  alkene. 
C)  alkyne. 
D)  aromatic compound. 
E)  alcohol. 
A)  alkane. 
B)  alkene. 
C)  alkyne. 
D)  aromatic compound. 
E)  alcohol.

Question 2

What is the IUPAC name of   ?

Accepted Answer

A)  1,2-dichloro-3-methylpentane 
B)  1,2-dichloro-3-methylcyclopentane 
C)  1-methyl-2,3-dichlorocyclopentane 
D)  3-methyl-1,2-dichlorocyclopentane 
E)  1,2-dichloro-3-methylcyclobutane 
A)  1,2-dichloro-3-methylpentane 
B)  1,2-dichloro-3-methylcyclopentane 
C)  1-methyl-2,3-dichlorocyclopentane 
D)  3-methyl-1,2-dichlorocyclopentane 
E)  1,2-dichloro-3-methylcyclobutane

Question 3

Which of the following pairs of compounds are structural isomers?

Accepted Answer

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

Question 4

In an amine functional group, the central atom is

Accepted Answer

A)  carbon. 
B)  hydrogen. 
C)  oxygen. 
D)  nitrogen. 
E)  sulfur. 
A)  carbon. 
B)  hydrogen. 
C)  oxygen. 
D)  nitrogen. 
E)  sulfur.

Question 5

The functional group contained in the compound   is a(n)

Accepted Answer

A)  thiol. 
B)  carboxylic acid. 
C)  amine. 
D)  ester. 
E)  amide. 
A)  thiol. 
B)  carboxylic acid. 
C)  amine. 
D)  ester. 
E)  amide.

Question 6

The reaction of butane with oxygen is called

Accepted Answer

A)  substitution. 
B)  addition. 
C)  neutralization. 
D)  combustion. 
E)  titration. 
A)  substitution. 
B)  addition. 
C)  neutralization. 
D)  combustion. 
E)  titration.

Question 7

Functional groups are groups of atoms that act in predictable ways.

Accepted Answer

A) True 
 B)False

Question 8

In the three-dimensional structure of methane, CH4, the hydrogen atoms attached to a carbon atom are aligned

Accepted Answer

A)  in a straight line. 
B)  at the corners of a square. 
C)  at the corners of a tetrahedron. 
D)  at the corners of a rectangle. 
E)  at the corners of a cube. 
A)  in a straight line. 
B)  at the corners of a square. 
C)  at the corners of a tetrahedron. 
D)  at the corners of a rectangle. 
E)  at the corners of a cube.

Question 9

Hydrocarbons are the primary constituents of

Accepted Answer

A)  drugs. 
B)  food flavors. 
C)  fossil fuels. 
D)  fruit juices. 
E)  disinfectants. 
A)  drugs. 
B)  food flavors. 
C)  fossil fuels. 
D)  fruit juices. 
E)  disinfectants.

Question 10

What is the name for a three-carbon saturated alkyl group?

Accepted Answer

A)  methyl 
B)  ethyl 
C)  propyl 
D)  butyl 
E)  pentyl 
A)  methyl 
B)  ethyl 
C)  propyl 
D)  butyl 
E)  pentyl

Question 11

The functional group contained in the compound CH3CH₂OH is a(n)

Accepted Answer

A)  aldehyde. 
B)  alkene. 
C)  alcohol. 
D)  ketone. 
E)  ether. 
A)  aldehyde. 
B)  alkene. 
C)  alcohol. 
D)  ketone. 
E)  ether.

Question 12

What is the name of the alkyl group CH3-CH₂-CH₂-?

Accepted Answer

A)  propane 
B)  methyl 
C)  ethane 
D)  ethyl 
E)  propyl 
A)  propane 
B)  methyl 
C)  ethane 
D)  ethyl 
E)  propyl

Question 13

The special feature that determines the family name and chemical reactivity of the organic compound it is found in is called a(n)

Accepted Answer

A)  functional group. 
B)  organic compound. 
C)  identifying group. 
D)  ionic bond. 
E)  covalent bond. 
A)  functional group. 
B)  organic compound. 
C)  identifying group. 
D)  ionic bond. 
E)  covalent bond.

Question 14

Which one of the following is NOT an organic substance?

Accepted Answer

A)  an antibiotic 
B)  nylon 
C)  coal 
D)  silk 
E)  salt, sodium chloride 
A)  an antibiotic 
B)  nylon 
C)  coal 
D)  silk 
E)  salt, sodium chloride

Question 15

How many valence electrons does carbon have?

Accepted Answer

A)  one 
B)  two 
C)  three 
D)  four 
E)  five 
A)  one 
B)  two 
C)  three 
D)  four 
E)  five

Question 16

There are millions of organic compounds.

Accepted Answer

A) True 
 B)False

Question 17

According to the IUPAC convention, alkyl substituents on a hydrocarbon chain should be listed in which order?

Accepted Answer

A)  alphabetical including prefixes 
B)  alphabetical without considering prefixes 
C)  in order with the substituent having the highest number of carbons first 
D)  in order with the substituent having the lowest number of carbons first 
E)  in order with the substituent having the highest total number of carbons first 
A)  alphabetical including prefixes 
B)  alphabetical without considering prefixes 
C)  in order with the substituent having the highest number of carbons first 
D)  in order with the substituent having the lowest number of carbons first 
E)  in order with the substituent having the highest total number of carbons first

Question 18

When drawing a structural formula, the first step is to draw

Accepted Answer

A)  the substituents. 
B)  the most highly substituted carbons. 
C)  the saturated carbons. 
D)  the main carbon chain. 
E)  the functional group. 
A)  the substituents. 
B)  the most highly substituted carbons. 
C)  the saturated carbons. 
D)  the main carbon chain. 
E)  the functional group.

Question 19

A thiol is a functional group containing

Accepted Answer

A)  carbon. 
B)  chlorine. 
C)  oxygen. 
D)  nitrogen. 
E)  sulfur. 
A)  carbon. 
B)  chlorine. 
C)  oxygen. 
D)  nitrogen. 
E)  sulfur.

Question 20

What is the name of this compound? 
CH3- CH₂- CH₂- CH₂-CH3

Accepted Answer

A)  pentane 
B)  hexane 
C)  heptane 
D)  octane 
E)  methylbutane 
A)  pentane 
B)  hexane 
C)  heptane 
D)  octane 
E)  methylbutane

Exam 11: Introduction to Organic Chemistry: Alkanes

An organic compound composed of carbon and hydrogen connected only by single bonds is an

What is the IUPAC name of ?

Which of the following pairs of compounds are structural isomers?

In an amine functional group, the central atom is

The functional group contained in the compound is a(n)

The reaction of butane with oxygen is called

Functional groups are groups of atoms that act in predictable ways.

In the three-dimensional structure of methane, CH4, the hydrogen atoms attached to a carbon atom are aligned

Hydrocarbons are the primary constituents of

What is the name for a three-carbon saturated alkyl group?

The functional group contained in the compound CH3CH₂OH is a(n)

What is the name of the alkyl group CH3-CH₂-CH₂-?

The special feature that determines the family name and chemical reactivity of the organic compound it is found in is called a(n)

Which one of the following is NOT an organic substance?

How many valence electrons does carbon have?

There are millions of organic compounds.

According to the IUPAC convention, alkyl substituents on a hydrocarbon chain should be listed in which order?

When drawing a structural formula, the first step is to draw

A thiol is a functional group containing

What is the name of this compound? CH3- CH₂- CH₂- CH₂-CH3

Chemistry and Measurements

Energy and Matter

Atoms and Elements

Nuclear Chemistry

Compounds and Their Bonds

Chemical Reactions and Quantities

Gases

Solutions

Reaction Rates and Chemical Equilibrium

Acids and Bases

Alkenes, Alkynes, and Aromatic Compounds

Alcohols, Phenols, Thiols, and Ethers

Aldehydes, Ketones, and Chiral Molecules

Carbohydrates

Carboxylic Acids and Esters

Lipids

Amines and Amides

Amino Acids and Proteins

Enzymes and Vitamins

Nucleic Acids and Protein Synthesis

Metabolic Pathways for Carbohydrates

Metabolism and Energy Production

Metabolic Pathways for Lipids and Amino Acids

Filters

In the three-dimensional structure of methane, CH₄, the hydrogen atoms attached to a carbon atom are aligned

The functional group contained in the compound CH₃CH₂OH is a(n)

What is the name of the alkyl group CH₃-CH₂-CH₂-?

What is the name of this compound? CH₃- CH₂- CH₂- CH₂-CH₃