Question 1

The products of the complete combustion of any hydrocarbon are CO2 + H2O,regardless of the identity of the starting material.

Accepted Answer

A) True 
 B)False  True

Question 2

Acyclic alkanes with four or more carbon atoms have constitutional isomers.

Accepted Answer

A) True 
 B)False  True

Question 3

Which molecular formula has the largest number of constitutional isomers?

Accepted Answer

A) C5H12 
B) C2H6 
C) C6H14 
D) All of the molecular formulas above have the same number of constitutional isomers. 
A) C5H12 
B) C2H6 
C) C6H14 
D) All of the molecular formulas above have the same number of constitutional isomers. C

Question 4

The two structures below represent the same compound.

Accepted Answer

A) True 
 B)False

Question 5

Natural gas is composed primarily of propane.

Accepted Answer

A) True 
 B)False

Question 6

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

Accepted Answer

A) C1 is a 1°,C2 is 2°,C3 is a 3°,and C4 is 4°. 
B) C1 is a 2°,C2 is 3°,C3 is a 3°,and C4 is 4°. 
C) C1 is a 1°,C2 is 2°,C3 is a 3°,and C4 is 1°. 
D) C1 is a 2°,C2 is 3°,C3 is a 2°,and C4 is 3°. 
A) C1 is a 1°,C2 is 2°,C3 is a 3°,and C4 is 4°. 
B) C1 is a 2°,C2 is 3°,C3 is a 3°,and C4 is 4°. 
C) C1 is a 1°,C2 is 2°,C3 is a 3°,and C4 is 1°. 
D) C1 is a 2°,C2 is 3°,C3 is a 2°,and C4 is 3°.

Question 7

Cycloalkanes with 14 to 18 carbon atoms occur in musk,extracted from deer of the family Moschidae. If one of these cycloalkanes has one ring and 17 carbon atoms,it has ________ hydrogen atoms.

Accepted Answer

The answer of Cycloalkanes with 14 to 18 carbon atoms...

Question 8

Which is NOT a property associated with tetradecane,a 14-carbon straight chain alkane?

Accepted Answer

A) Strong hydrogen bonds 
B) Low water solubility 
C) Density less than water 
D) Flammable liquid 
A) Strong hydrogen bonds 
B) Low water solubility 
C) Density less than water 
D) Flammable liquid

Question 9

What is the classification of the carbon atom that bonded to the -OH group in menthol?

Accepted Answer

A) Primary 
B) Secondary 
C) Tertiary 
D) Quaternary 
A) Primary 
B) Secondary 
C) Tertiary 
D) Quaternary

Question 10

The IUPAC name of an organic compound can be long and complex. As a result,most drugs have three names: ________,________,and ________.

Accepted Answer

systematic

Question 11

What is the IUPAC name of CH3CH2CH2CH2CH2CH3?

Accepted Answer

A) Butane 
B) Hexane 
C) Propane 
D) Pentane 
E) Heptane 
A) Butane 
B) Hexane 
C) Propane 
D) Pentane 
E) Heptane

Question 12

What is the structure of 1-ethyl-2-methylcyclohexane?

Accepted Answer

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

Question 13

Which compound is identical to this molecule?

Accepted Answer

A)    
B)    
C)    
D)    
E) More than one molecule is identical to the original molecule. 
A)    
B)    
C)    
D)    
E) More than one molecule is identical to the original molecule.

Question 14

What is the IUPAC name of this compound?

Accepted Answer

A) 4-propylhexane 
B) 3-ethyl-2-methylhexane 
C) 2-methyl-3-ethylhexane 
D) 4-ethyl-5-methylheptane 
A) 4-propylhexane 
B) 3-ethyl-2-methylhexane 
C) 2-methyl-3-ethylhexane 
D) 4-ethyl-5-methylheptane

Question 15

What is the IUPAC name of this compound?

Accepted Answer

A) Ethyl-methyl-cyclopropane 
B) Ethyl-2-methylcyclobutane 
C) 1-ethyl-2-methylcyclobutane 
D) 1-ethyl-2-methylcyclopropane 
E) Ethyl-2-methylcyclotriane 
A) Ethyl-methyl-cyclopropane 
B) Ethyl-2-methylcyclobutane 
C) 1-ethyl-2-methylcyclobutane 
D) 1-ethyl-2-methylcyclopropane 
E) Ethyl-2-methylcyclotriane

Question 16

Which name is not a valid IUPAC name for an alkane?

Accepted Answer

A) 2,3,4-trimethylhexane 
B) 1-butyl-2-ethylcyclopentane 
C) 1-ethyl-2-butylpentane 
D) 5-butyl-2-methylnonane 
A) 2,3,4-trimethylhexane 
B) 1-butyl-2-ethylcyclopentane 
C) 1-ethyl-2-butylpentane 
D) 5-butyl-2-methylnonane

Question 17

The compound below is an example of a saturated hydrocarbon.

Accepted Answer

A) True 
 B)False

Question 18

Which types of compounds are saturated hydrocarbons?

Accepted Answer

A) Alkenes 
B) Aromatic hydrocarbons 
C) Alkanes 
D) Alkynes 
E) All of the hydrocarbons are unsaturated hydrocarbons. 
A) Alkenes 
B) Aromatic hydrocarbons 
C) Alkanes 
D) Alkynes 
E) All of the hydrocarbons are unsaturated hydrocarbons.

Question 19

The IUPAC name of the molecule below is propylcyclobutane.

Accepted Answer

A) True 
 B)False

Question 20

How many primary carbon atoms are in the straight-chain alkane with the formula C3H8?

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

The products of the complete combustion of any hydrocarbon are CO2 + H2O,regardless of the identity of the starting material.

Acyclic alkanes with four or more carbon atoms have constitutional isomers.

Which molecular formula has the largest number of constitutional isomers?

The two structures below represent the same compound.

Natural gas is composed primarily of propane.

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

Cycloalkanes with 14 to 18 carbon atoms occur in musk,extracted from deer of the family Moschidae. If one of these cycloalkanes has one ring and 17 carbon atoms,it has ________ hydrogen atoms.

Which is NOT a property associated with tetradecane,a 14-carbon straight chain alkane?

What is the classification of the carbon atom that bonded to the -OH group in menthol?

The IUPAC name of an organic compound can be long and complex. As a result,most drugs have three names: ________,________,and ________.

What is the IUPAC name of CH3CH2CH2CH2CH2CH3?

What is the structure of 1-ethyl-2-methylcyclohexane?

Which compound is identical to this molecule?

What is the IUPAC name of this compound?

What is the IUPAC name of this compound?

Which name is not a valid IUPAC name for an alkane?

The compound below is an example of a saturated hydrocarbon.

Which types of compounds are saturated hydrocarbons?

The IUPAC name of the molecule below is propylcyclobutane.

How many primary carbon atoms are in the straight-chain alkane with the formula C3H8?

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

The products of the complete combustion of any hydrocarbon are CO₂ + H₂O,regardless of the identity of the starting material.

The IUPAC name of an organic compound can be long and complex. As a result,most drugs have three names: ,,and .

What is the IUPAC name of CH₃CH₂CH₂CH₂CH₂CH₃?

How many primary carbon atoms are in the straight-chain alkane with the formula C₃H₈?