Question 1

Some alkenes have cis-trans isomers because

Accepted Answer

A) each of the carbon atoms in the double bond has four different groups attached to it. 
B) the carbon atoms in the double bond are free to rotate. 
C) one of the carbon atoms in the double bond has two identical groups attached to it. 
D) the carbon atoms in the double bond cannot rotate. 
E) all of the carbon atoms in the compound are rigid and cannot rotate. 
A) each of the carbon atoms in the double bond has four different groups attached to it. 
B) the carbon atoms in the double bond are free to rotate. 
C) one of the carbon atoms in the double bond has two identical groups attached to it. 
D) the carbon atoms in the double bond cannot rotate. 
E) all of the carbon atoms in the compound are rigid and cannot rotate.

Question 2

An alkyne is a hydrocarbon that contains at least one________ bond.

Accepted Answer

A) triple 
B) aromatic 
C) hydrogen 
D) single 
E) double 
A) triple 
B) aromatic 
C) hydrogen 
D) single 
E) double

Question 3

A molecule containing a carbon atom bonded to four chlorine atoms has the shape of a

Accepted Answer

A) square. 
B) rhombus. 
C) tetrahedron. 
D) cube. 
E) triangle. 
A) square. 
B) rhombus. 
C) tetrahedron. 
D) cube. 
E) triangle.

Question 4

Organic compounds that are poorly soluble in water behave that way because they are

Accepted Answer

A) covalently bonded. 
B) generally nonpolar. 
C) moderately polar. 
D) highly polar. 
E) ionically bonded. 
A) covalently bonded. 
B) generally nonpolar. 
C) moderately polar. 
D) highly polar. 
E) ionically bonded.

Question 5

What is the name of this compound?

Accepted Answer

A) 1,3-dichlorobutane 
B) 1,1-dichlorobutane 
C) 1,4-dichlorobutane 
D) 1,2,-dichlorobutane 
E) dichlorobutane 
A) 1,3-dichlorobutane 
B) 1,1-dichlorobutane 
C) 1,4-dichlorobutane 
D) 1,2,-dichlorobutane 
E) dichlorobutane

Question 6

A compound that contains the ring structure of benzene is called a(n)

Accepted Answer

A) alkane. 
B) alkyl group. 
C) aromatic compound. 
D) hydrocarbon. 
E) cycloalkane. 
A) alkane. 
B) alkyl group. 
C) aromatic compound. 
D) hydrocarbon. 
E) cycloalkane.

Question 7

Carbon tetrachloride has a polar C-Cl bond. What is the overall polarity of the carbon tetrachloride molecule?

Accepted Answer

A) inverse polarity 
B) weakly polar 
C) strongly polar 
D) nonpolar 
E) reversed polarity 
A) inverse polarity 
B) weakly polar 
C) strongly polar 
D) nonpolar 
E) reversed polarity

Question 8

What is the IUPAC name for the following compound?

Accepted Answer

A) 4-methyl-3-pentene 
B) hexene 
C) 2-methyl-3-pentene 
D) 3-methyl-4-pentene 
E) 2-methyl-2-pentene 
A) 4-methyl-3-pentene 
B) hexene 
C) 2-methyl-3-pentene 
D) 3-methyl-4-pentene 
E) 2-methyl-2-pentene

Question 9

The bond angles of tetravalent carbon are all approximately

Accepted Answer

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

Question 10

In the addition of water to an alkene, the hydrogen in   adds to the carbon in the double bond

Accepted Answer

A)  that has the greater number of carbon atoms attached. 
B)  that has the greater number of hydrogen atoms attached. 
C)  attached to the end carbon. 
D)  that has the smaller number of carbon atoms attached. 
E)  that has the smaller number of hydrogen atoms attached. 
A)  that has the greater number of carbon atoms attached. 
B)  that has the greater number of hydrogen atoms attached. 
C)  attached to the end carbon. 
D)  that has the smaller number of carbon atoms attached. 
E)  that has the smaller number of hydrogen atoms attached.

Question 11

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

Accepted Answer

A) hexane 
B) heptane 
C) octane 
D) nonane 
E) decane 
A) hexane 
B) heptane 
C) octane 
D) nonane 
E) decane

Question 12

Accepted Answer

A) trans-2-pentene 
B) cis-2-pentene 
C) trans-3-pentene 
D) cis-3-pentene 
E) 2-pentene 
A) trans-2-pentene 
B) cis-2-pentene 
C) trans-3-pentene 
D) cis-3-pentene 
E) 2-pentene

Question 13

What is the IUPAC name for this alkane?

Accepted Answer

A) 2, 3-diethylbutane 
B) 2-ethyl-3-methylpentane 
C) 4-ethyl-3-methylpentane 
D) octane 
E) 3, 4-dimethylhexane 
A) 2, 3-diethylbutane 
B) 2-ethyl-3-methylpentane 
C) 4-ethyl-3-methylpentane 
D) octane 
E) 3, 4-dimethylhexane

Question 14

What is the IUPAC name of this alkane?

Accepted Answer

A) 2-ethyl-4,4-dimethylpentane 
B) 4-ethyl-2,2-dimethylpentane 
C) 3,5,5-trimethylhexane 
D) 2-ethyl-2,2-dimethylpentane 
E) 2,2,4-trimethylhexane 
A) 2-ethyl-4,4-dimethylpentane 
B) 4-ethyl-2,2-dimethylpentane 
C) 3,5,5-trimethylhexane 
D) 2-ethyl-2,2-dimethylpentane 
E) 2,2,4-trimethylhexane

Question 15

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

Accepted Answer

A) hexane 
B) heptane 
C) octane 
D) nonane 
E) decane 
A) hexane 
B) heptane 
C) octane 
D) nonane 
E) decane

Question 16

Which of the following compounds is an alkyne?

Accepted Answer

A)    
B)    
C)  2 -pentene 
D)    
E)    
A)    
B)    
C)  2 -pentene 
D)    
E)

Question 17

What is the IUPAC name of this compound?

Accepted Answer

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

Question 18

What is the IUPAC name for the following?

Accepted Answer

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

Question 19

Accepted Answer

A) 4-methylhexane 
B) 3-methylhexane 
C) 2-methylhexane 
D) methylhexane 
E) heptane 
A) 4-methylhexane 
B) 3-methylhexane 
C) 2-methylhexane 
D) methylhexane 
E) heptane

Question 20

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

Accepted Answer

A) hexane 
B) heptane 
C) octane 
D) nonane 
E) decane 
A) hexane 
B) heptane 
C) octane 
D) nonane 
E) decane

Exam 12: Introduction to Organic Chemistry: Hydrocarbons

Some alkenes have cis-trans isomers because

An alkyne is a hydrocarbon that contains at least one________ bond.

A molecule containing a carbon atom bonded to four chlorine atoms has the shape of a

Organic compounds that are poorly soluble in water behave that way because they are

What is the name of this compound?

A compound that contains the ring structure of benzene is called a(n)

Carbon tetrachloride has a polar C-Cl bond. What is the overall polarity of the carbon tetrachloride molecule?

What is the IUPAC name for the following compound?

The bond angles of tetravalent carbon are all approximately

In the addition of water to an alkene, the hydrogen in adds to the carbon in the double bond

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

What is the IUPAC name for this alkane?

What is the IUPAC name of this alkane?

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

Which of the following compounds is an alkyne?

What is the IUPAC name of this compound?

What is the IUPAC name for the following?

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

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