Question 1

The hydrogenation of an alkene gives a(n)

Accepted Answer

A) alkane. 
B) isomer. 
C) alkyne. 
D) alkene. 
E) benzene. 
A) alkane. 
B) isomer. 
C) alkyne. 
D) alkene. 
E) benzene.

Question 2

Which of these formulas is an expanded structural formula for an alkane with three carbon atoms?

Accepted Answer

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

Question 3

Which of the following compounds have cis-trans isomers?

Accepted Answer

A)    
B)    
C)    
D)    
E)  All of the above have cis-trans isomers. 
A)    
B)    
C)    
D)    
E)  All of the above have cis-trans isomers.

Question 4

Accepted Answer

A) butane 
B) 1-methylbutane 
C) 4-methylbutane 
D) hexane 
E) pentane 
A) butane 
B) 1-methylbutane 
C) 4-methylbutane 
D) hexane 
E) pentane

Question 5

The IUPAC name for ethylene is

Accepted Answer

A) ethanene. 
B) ethane. 
C) cycloethane. 
D) ethene. 
E) ethyne. 
A) ethanene. 
B) ethane. 
C) cycloethane. 
D) ethene. 
E) ethyne.

Question 6

Generally, a solution of an organic compound in water will be electrically

Accepted Answer

A) highly conductive. 
B) highly ionized. 
C) insulated. 
D) nonconductive. 
E) charged. 
A) highly conductive. 
B) highly ionized. 
C) insulated. 
D) nonconductive. 
E) charged.

Question 7

When naming an alkene, the parent chain is the longest carbon chain

Accepted Answer

A) that contains at least one of the carbon atoms of the double bond. 
B) that does not contain the double bond. 
C) regardless of whether or not it contains the double bond. 
D) that contains the double bond. 
E) that contains a branch. 
A) that contains at least one of the carbon atoms of the double bond. 
B) that does not contain the double bond. 
C) regardless of whether or not it contains the double bond. 
D) that contains the double bond. 
E) that contains a branch.

Question 8

The carbon atoms in saturated hydrocarbons

Accepted Answer

A) contain a benzene ring. 
B) contain both a double and a triple bond. 
C) contain at least one triple bond. 
D) have only single bonds. 
E) contain at least one double bond. 
A) contain a benzene ring. 
B) contain both a double and a triple bond. 
C) contain at least one triple bond. 
D) have only single bonds. 
E) contain at least one double bond.

Question 9

What is the IUPAC name of this compound?

Accepted Answer

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

Question 10

Which of the following is a condensed structural formula for an alkane with four carbon atoms?

Accepted Answer

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

Question 11

Which one of the following is NOT an organic substance?

Accepted Answer

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

Question 12

The structural formula of benzene is often represented as a

Accepted Answer

A) cycloalkane. 
B) ring of six carbon atoms with a circle in the center. 
C) cycloalkyne. 
D) ring of six carbon atoms with six double bonds. 
E) ring of five carbon atoms. 
A) cycloalkane. 
B) ring of six carbon atoms with a circle in the center. 
C) cycloalkyne. 
D) ring of six carbon atoms with six double bonds. 
E) ring of five carbon atoms.

Question 13

What is the IUPAC name of this compound?

Accepted Answer

A) cyclohexane 
B) cyclopentane 
C) pentane 
D) cycloheptane 
E) cyclooctane 
A) cyclohexane 
B) cyclopentane 
C) pentane 
D) cycloheptane 
E) cyclooctane

Question 14

What is the IUPAC name for a four-carbon continuous-chain alkane?

Accepted Answer

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

Question 15

The IUPAC name for   is

Accepted Answer

A)  pentyne. 
B)  3 -pentyne. 
C)  1-methylbutyne. 
D)  2-pentyne. 
E)  2-propene. 
A)  pentyne. 
B)  3 -pentyne. 
C)  1-methylbutyne. 
D)  2-pentyne. 
E)  2-propene.

Question 16

What is(are) the product(s) of the complete combustion of any hydrocarbon?

Accepted Answer

A)  CO only 
B)    
C)    
D)    
E)   
A)  CO only 
B)    
C)    
D)    
E)

Question 17

A hydrocarbon with at least one double bond is a(n)

Accepted Answer

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

Question 18

What is the IUPAC name for this three-carbon alkyl group?

Accepted Answer

A) iso-propyl 
B) ethyl 
C) butyl 
D) iso-butyl 
E) n-propyl 
A) iso-propyl 
B) ethyl 
C) butyl 
D) iso-butyl 
E) n-propyl

Question 19

The reaction for the combustion of heptane is   How many liters of   at STP are produced from the complete combustion of  2.00  moles of heptane?

Accepted Answer

A)   44.8 L 
B)   246 L 
C)   22.4 L 
D)   314 L 
E)   157 L 
A)   44.8 L 
B)   246 L 
C)   22.4 L 
D)   314 L 
E)   157 L

Question 20

What is the IUPAC name for a one-carbon alkyl substituent?

Accepted Answer

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

Exam 12: Introduction to Organic Chemistry: Hydrocarbons

The hydrogenation of an alkene gives a(n)

Which of these formulas is an expanded structural formula for an alkane with three carbon atoms?

Which of the following compounds have cis-trans isomers?

The IUPAC name for ethylene is

Generally, a solution of an organic compound in water will be electrically

When naming an alkene, the parent chain is the longest carbon chain

The carbon atoms in saturated hydrocarbons

What is the IUPAC name of this compound?

Which of the following is a condensed structural formula for an alkane with four carbon atoms?

Which one of the following is NOT an organic substance?

The structural formula of benzene is often represented as a

What is the IUPAC name of this compound?

What is the IUPAC name for a four-carbon continuous-chain alkane?

The IUPAC name for is

What is(are) the product(s) of the complete combustion of any hydrocarbon?

A hydrocarbon with at least one double bond is a(n)

What is the IUPAC name for this three-carbon alkyl group?

The reaction for the combustion of heptane is How many liters of at STP are produced from the complete combustion of 2.00 moles of heptane?

What is the IUPAC name for a one-carbon alkyl substituent?

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