Question 1

Alkyl groups are named by changing the -ane ending of the parent alkane to the suffix ________.

Accepted Answer

The answer of Alkyl groups are named by changing the...

Question 2

The products of the incomplete combustion of an alkane are ________ and water.

Accepted Answer

carbon mon

Question 3

The IUPAC name of the compound below is ________.

Accepted Answer

3,3-diethy

Question 4

Octane is a saturated hydrocarbon with eight carbons attached in a continuous chain.

Accepted Answer

A) True 
 B)False

Question 5

Alkanes containing only secondary carbon atoms do not exist.

Accepted Answer

A) True 
 B)False

Question 6

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

Accepted Answer

The answer of There are ________ carbons in the longest...

Question 7

Shark liver oil is approximately 14% pristane (C19H40). Pristane is an acyclic alkane.

Accepted Answer

A) True 
 B)False

Question 8

What is the structure of butylcyclopentane?

Accepted Answer

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

Question 9

Cyclic alkanes are planar molecules containing one or more rings of carbon.

Accepted Answer

A) True 
 B)False

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

What is the structure of 4 propyloctane?

Accepted Answer

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

Question 12

The IUPAC name of the compound below is ________.

Accepted Answer

The answer of The IUPAC name of the compound below...

Question 13

Which balanced chemical equation represents the incomplete combustion of a hydrocarbon?

Accepted Answer

A) CH3CH2CH3 + 5 O2 → 3 CO2 + 4 H2O 
B) 2 CH3CH2CH3 + 7 O2 → 6 CO + 8 H2O 
C) C36H74 + 36 O2 → 36 CO + 37 H2O 
D) C26H50 + 33 O2 → 16 CO2 + 10 CO + 25 H2O 
A) CH3CH2CH3 + 5 O2 → 3 CO2 + 4 H2O 
B) 2 CH3CH2CH3 + 7 O2 → 6 CO + 8 H2O 
C) C36H74 + 36 O2 → 36 CO + 37 H2O 
D) C26H50 + 33 O2 → 16 CO2 + 10 CO + 25 H2O

Question 14

Which of the following pairs of compounds are constitutional isomers?

Accepted Answer

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

Question 15

Which has the highest boiling point?

Accepted Answer

A) Natural gas 
B) Lubricating oil 
C) Gasoline 
D) Kerosene 
E) Fuel oil 
A) Natural gas 
B) Lubricating oil 
C) Gasoline 
D) Kerosene 
E) Fuel oil

Question 16

The IUPAC name of the molecule (CH3)2CH(CH2)2CH3 is 2-methylhexane.

Accepted Answer

A) True 
 B)False

Question 17

Branching in an alkane chain decreases surface area. With this in mind,which of the following alkanes has the highest boiling point?

Accepted Answer

A) (CH3)2CHCH2CH2CH2CH2CH3 
B) (CH3)2CHCH2CH2CH(CH3)2 
C) CH3CH2CH2CH2CH2CH2CH2CH3 
D) (CH3)3CC(CH3)3 
A) (CH3)2CHCH2CH2CH2CH2CH3 
B) (CH3)2CHCH2CH2CH(CH3)2 
C) CH3CH2CH2CH2CH2CH2CH2CH3 
D) (CH3)3CC(CH3)3

Question 18

Which formula represents a cyclic alkane?

Accepted Answer

A) C10H18 
B) C10H22 
C) C9H20 
D) C10H20 
E) C11H20 
A) C10H18 
B) C10H22 
C) C9H20 
D) C10H20 
E) C11H20

Question 19

5-ethyl-2-methylhexane is a valid IUPAC name for an alkane.

Accepted Answer

A) True 
 B)False

Question 20

How many secondary carbons are in the molecule (CH3)2CH(CH2)2CH3?

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3 
E) 4 
A) 0 
B) 1 
C) 2 
D) 3 
E) 4

Exam 12: Alkanes

Alkyl groups are named by changing the -ane ending of the parent alkane to the suffix ________.

The products of the incomplete combustion of an alkane are ________ and water.

The IUPAC name of the compound below is ________.

Octane is a saturated hydrocarbon with eight carbons attached in a continuous chain.

Alkanes containing only secondary carbon atoms do not exist.

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

Shark liver oil is approximately 14% pristane (C19H40). Pristane is an acyclic alkane.

What is the structure of butylcyclopentane?

Cyclic alkanes are planar molecules containing one or more rings of carbon.

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

What is the structure of 4 propyloctane?

The IUPAC name of the compound below is ________.

Which balanced chemical equation represents the incomplete combustion of a hydrocarbon?

Which of the following pairs of compounds are constitutional isomers?

Which has the highest boiling point?

The IUPAC name of the molecule (CH3)2CH(CH2)2CH3 is 2-methylhexane.

Branching in an alkane chain decreases surface area. With this in mind,which of the following alkanes has the highest boiling point?

Which formula represents a cyclic alkane?

5-ethyl-2-methylhexane is a valid IUPAC name for an alkane.

How many secondary carbons are in the molecule (CH3)2CH(CH2)2CH3?

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

Shark liver oil is approximately 14% pristane (C₁₉H₄₀). Pristane is an acyclic alkane.

The IUPAC name of the molecule (CH₃)₂CH(CH₂)₂CH₃ is 2-methylhexane.

How many secondary carbons are in the molecule (CH₃)₂CH(CH₂)₂CH₃?