Question 1

Combustion is an example of an oxidation-reduction reaction.

Accepted Answer

A) True 
 B)False

Question 2

The compounds shown below are related as constitutional isomers.

Accepted Answer

A) True 
 B)False

Question 3

What type of compound is formed with an alkane reacts with light and chlorine,Cl2?

Accepted Answer

A) Alkene 
B) Alkyl halide 
C) Alkyne 
D) Cycloalkane 
A) Alkene 
B) Alkyl halide 
C) Alkyne 
D) Cycloalkane

Question 4

The molecules below are constitutional isomers.

Accepted Answer

A) True 
 B)False

Question 5

What is the classification of each labeled carbon atom in this structure?

Accepted Answer

A) C1 is a 1°,C2 is 2°,and C3 is a 3°. 
B) C1 is a 2°,C2 is 1°,and C3 is a 3°. 
C) C1 is a 3°,C2 is 2°,and C3 is a 1°. 
D) C1 is a 3°,C2 is 1°,and C3 is a 2°. 
A) C1 is a 1°,C2 is 2°,and C3 is a 3°. 
B) C1 is a 2°,C2 is 1°,and C3 is a 3°. 
C) C1 is a 3°,C2 is 2°,and C3 is a 1°. 
D) C1 is a 3°,C2 is 1°,and C3 is a 2°.

Question 6

1,1-dimethylcyclohexane is a valid IUPAC name for an alkane.

Accepted Answer

A) True 
 B)False

Question 7

There are ________ carbons in the longest continuous chain of carbons in the molecule below.

Accepted Answer

A) 6 (six) 
B) 7 (seven) 
C) 8 (eight) 
D) 9 (nine) 
E) 10 (ten) 
A) 6 (six) 
B) 7 (seven) 
C) 8 (eight) 
D) 9 (nine) 
E) 10 (ten)

Question 8

5-methyl-2-butylnonane is a valid IUPAC name for an alkane.

Accepted Answer

A) True 
 B)False

Question 9

Which name represents a valid IUPAC name for an alkane?

Accepted Answer

A) 1,4-diethylheptane 
B) 4,4-diethyl-2,3,4-trimethylpentane 
C) 4,4-diethyl-2,3,4-trimethylcycloheptane 
D) 4,4-diethyl-2,3-dimethylheptane 
E) More than one of the names is a valid IUPAC name for an alkane. 
A) 1,4-diethylheptane 
B) 4,4-diethyl-2,3,4-trimethylpentane 
C) 4,4-diethyl-2,3,4-trimethylcycloheptane 
D) 4,4-diethyl-2,3-dimethylheptane 
E) More than one of the names is a valid IUPAC name for an alkane.

Question 10

Decane has the structure: CH3(CH2)9CH3. What does the prefix "dec-" specifically indicate about the structure of this compound?

Accepted Answer

A) It contains a straight chain of carbons. 
B) It contains 10 carbons in a continuous chain. 
C) It is an alkane. 
D) It is a saturated hydrocarbon. 
A) It contains a straight chain of carbons. 
B) It contains 10 carbons in a continuous chain. 
C) It is an alkane. 
D) It is a saturated hydrocarbon.

Question 11

A branched-chain alkane with five carbon atoms has the same number of hydrogen atoms that a straight-chain alkane with five carbon atoms has.

Accepted Answer

A) True 
 B)False

Question 12

A branched alkane and a cycloalkane with the same number of carbons have the same number of hydrogen atoms in their chemical formulas.

Accepted Answer

A) True 
 B)False

Question 13

What is the IUPAC name of this compound?

Accepted Answer

A) Heptane 
B) 1,1,3,3-tetramethylpropane 
C) 2,4-dimethylpentane 
D) 1,5-dimethylpentane 
A) Heptane 
B) 1,1,3,3-tetramethylpropane 
C) 2,4-dimethylpentane 
D) 1,5-dimethylpentane

Question 14

Which structure depicts an alkane of molecular formula C6H12 that has two 1° carbons and two 3° carbons?

Accepted Answer

A)    
B) CH3CH2CH2CH2CH2CH3 
C)    
D)    
A)    
B) CH3CH2CH2CH2CH2CH3 
C)    
D)

Question 15

Pentane has a higher boiling point than 2,2-dimethylpropane.

Accepted Answer

A) True 
 B)False

Question 16

Constitutional isomers differ in the ________.

Accepted Answer

A) identities of the atoms in the molecule 
B) number of hydrogen atoms in the molecule 
C) way the atoms are connected to each other 
D) molecular formula used to describe them 
A) identities of the atoms in the molecule 
B) number of hydrogen atoms in the molecule 
C) way the atoms are connected to each other 
D) molecular formula used to describe them

Question 17

The combustion of alkanes and other hydrocarbons obtained from fossil fuels adds a tremendous amount of CO2 to the atmosphere each year.

Accepted Answer

A) True 
 B)False

Question 18

How many hydrogen atoms are present in a cyclic alkane with six (6)carbon atoms?

Accepted Answer

A) 6 
B) 8 
C) 10 
D) 12 
E) 14 
A) 6 
B) 8 
C) 10 
D) 12 
E) 14

Question 19

All organic molecules must have at least one primary carbon atom.

Accepted Answer

A) True 
 B)False

Question 20

A four-carbon substituent bonded to a long carbon chain is called ________.

Accepted Answer

The answer of A four-carbon substituent bonded to a long...

Exam 12: Alkanes

Combustion is an example of an oxidation-reduction reaction.

The compounds shown below are related as constitutional isomers.

What type of compound is formed with an alkane reacts with light and chlorine,Cl2?

The molecules below are constitutional isomers.

What is the classification of each labeled carbon atom in this structure?

1,1-dimethylcyclohexane is a valid IUPAC name for an alkane.

There are ________ carbons in the longest continuous chain of carbons in the molecule below.

5-methyl-2-butylnonane is a valid IUPAC name for an alkane.

Which name represents a valid IUPAC name for an alkane?

Decane has the structure: CH3(CH2)9CH3. What does the prefix "dec-" specifically indicate about the structure of this compound?

A branched-chain alkane with five carbon atoms has the same number of hydrogen atoms that a straight-chain alkane with five carbon atoms has.

A branched alkane and a cycloalkane with the same number of carbons have the same number of hydrogen atoms in their chemical formulas.

What is the IUPAC name of this compound?

Which structure depicts an alkane of molecular formula C6H12 that has two 1° carbons and two 3° carbons?

Pentane has a higher boiling point than 2,2-dimethylpropane.

Constitutional isomers differ in the ________.

The combustion of alkanes and other hydrocarbons obtained from fossil fuels adds a tremendous amount of CO2 to the atmosphere each year.

How many hydrogen atoms are present in a cyclic alkane with six (6)carbon atoms?

All organic molecules must have at least one primary carbon atom.

A four-carbon substituent bonded to a long carbon chain is called ________.

Matter and Measurement

Atoms and the Periodic Table

Ionic Compounds

Covalent Compounds

Chemical Reactions

Energy Changes,reaction Rates,and Equilibrium

Gases,liquids,and Solids

Solutions

Acids and Bases

Nuclear Chemistry

Introduction to Organic Molecules and Functional Groups

Unsaturated Hydrocarbons

Organic Compounds That Contain Oxygen,halogen,or Sulfur

The Three-Dimensional Shape of Molecules

Aldehydes and Ketones

Carboxylic Acids,esters,and Amides

Amines and Neurotransmitters

Lipids

Carbohydrates

Amino Acids,proteins,and Enzymes

Nucleic Acids and Protein Synthesis

Metabolism and Energy Production

Carbohydrate,lipid,and Protein Metabolism

Filters

What type of compound is formed with an alkane reacts with light and chlorine,Cl₂?

Decane has the structure: CH₃(CH₂)₉CH₃. What does the prefix "dec-" specifically indicate about the structure of this compound?

Which structure depicts an alkane of molecular formula C₆H₁₂ that has two 1° carbons and two 3° carbons?

The combustion of alkanes and other hydrocarbons obtained from fossil fuels adds a tremendous amount of CO₂ to the atmosphere each year.