Question 1

In the three-dimensional structure of methane,   the hydrogen atoms attached to a carbon atom are aligned

Accepted Answer

A)  at the corners of a rectangle. 
B)  in a straight line. 
C)  at the corners of a cube. 
D)  at the corners of a square. 
E)  at the corners of a tetrahedron. 
A)  at the corners of a rectangle. 
B)  in a straight line. 
C)  at the corners of a cube. 
D)  at the corners of a square. 
E)  at the corners of a tetrahedron.

Question 2

All of the carbon-carbon bonds in benzene are

Accepted Answer

A) identical. 
B) composed of only two types, single and double. 
C) circular bonds. 
D) single bonds. 
E) double bonds. 
A) identical. 
B) composed of only two types, single and double. 
C) circular bonds. 
D) single bonds. 
E) double bonds.

Question 3

As carbon bonds with atoms of increasingly higher electronegativities, the polarity of the bond

Accepted Answer

A) decreases. 
B) reverses. 
C) becomes inverted. 
D) increases. 
E) stays the same. 
A) decreases. 
B) reverses. 
C) becomes inverted. 
D) increases. 
E) stays the same.

Question 4

What is the name of the alkyl group

Accepted Answer

A)  ethane 
B)  ethyl 
C)  propane 
D)  methyl 
E)  propyl 
A)  ethane 
B)  ethyl 
C)  propane 
D)  methyl 
E)  propyl

Question 5

Accepted Answer

A) methanechlorine. 
B) chloromethane. 
C) methane chloride. 
D) methyl chloride. 
E) chloroethane. 
A) methanechlorine. 
B) chloromethane. 
C) methane chloride. 
D) methyl chloride. 
E) chloroethane.

Question 6

What is the IUPAC name for a two-carbon alkyl group?

Accepted Answer

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

Question 7

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

Accepted Answer

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

Question 8

What is the IUPAC name for the following compound?

Accepted Answer

A) 6-chloro-1-hexyne 
B) 1-chloro-5-hexyne 
C) 6-chloro-1-heptyne 
D) 6-chloro-2-pentyne 
E) 6-chloro-1-pentyne 
A) 6-chloro-1-hexyne 
B) 1-chloro-5-hexyne 
C) 6-chloro-1-heptyne 
D) 6-chloro-2-pentyne 
E) 6-chloro-1-pentyne

Question 9

What is the IUPAC name of the continuous chain alkane with six carbon atoms?

Accepted Answer

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

Question 10

The compound below is named

Accepted Answer

A) cyclohexyne. 
B) cyclobenzene. 
C) cyclohexene. 
D) cyclohexane. 
E) benzene. 
A) cyclohexyne. 
B) cyclobenzene. 
C) cyclohexene. 
D) cyclohexane. 
E) benzene.

Question 11

What is the condensed structural formula of the compound propene?

Accepted Answer

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

Question 12

The IUPAC name of   is

Accepted Answer

A)  1-butene. 
B)  2-butyne. 
C)  2-butene. 
D)  butene. 
E)  2-butane. 
A)  1-butene. 
B)  2-butyne. 
C)  2-butene. 
D)  butene. 
E)  2-butane.

Question 13

What is the name for the following?

Accepted Answer

A) pentane 
B) 4-methylpentane 
C) 2-methylpentane 
D) methylpentane 
E) hexane 
A) pentane 
B) 4-methylpentane 
C) 2-methylpentane 
D) methylpentane 
E) hexane

Question 14

A hydrocarbon contains only the elements

Accepted Answer

A) carbon and oxygen. 
B) carbon, hydrogen, and oxygen. 
C) hydrogen and oxygen. 
D) carbon and hydrogen. 
E) carbon, hydrogen, and nitrogen. 
A) carbon and oxygen. 
B) carbon, hydrogen, and oxygen. 
C) hydrogen and oxygen. 
D) carbon and hydrogen. 
E) carbon, hydrogen, and nitrogen.

Question 15

What type of compound is

Accepted Answer

A)  branched alkane 
B)  haloalkane 
C)  isomer 
D)  alkane 
E)  cycloalkane 
A)  branched alkane 
B)  haloalkane 
C)  isomer 
D)  alkane 
E)  cycloalkane

Question 16

In a condensed structural formula, each carbon atom is

Accepted Answer

A) shown with all individual atoms and bonds drawn. 
B) not explicitly shown. 
C) shown with only the other carbon atoms. 
D) written in lowercase letters. 
E) grouped with its bonded hydrogen atoms. 
A) shown with all individual atoms and bonds drawn. 
B) not explicitly shown. 
C) shown with only the other carbon atoms. 
D) written in lowercase letters. 
E) grouped with its bonded hydrogen atoms.

Question 17

The reaction of butane with oxygen is called

Accepted Answer

A) substitution. 
B) combustion. 
C) addition. 
D) neutralization. 
E) titration. 
A) substitution. 
B) combustion. 
C) addition. 
D) neutralization. 
E) titration.

Question 18

The compound 1-butyne contains

Accepted Answer

A) a ring structure. 
B) all single bonds. 
C) a triple bond. 
D) a double bond. 
E) a bromine atom. 
A) a ring structure. 
B) all single bonds. 
C) a triple bond. 
D) a double bond. 
E) a bromine atom.

Question 19

What is the major product of the reaction shown below?

Accepted Answer

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

Question 20

An alkene is a hydrocarbon that contains at least one ________ bond.

Accepted Answer

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

Exam 12: Introduction to Organic Chemistry: Hydrocarbons

In the three-dimensional structure of methane, the hydrogen atoms attached to a carbon atom are aligned

All of the carbon-carbon bonds in benzene are

As carbon bonds with atoms of increasingly higher electronegativities, the polarity of the bond

What is the name of the alkyl group

What is the IUPAC name for a two-carbon alkyl group?

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

What is the IUPAC name for the following compound?

What is the IUPAC name of the continuous chain alkane with six carbon atoms?

The compound below is named

What is the condensed structural formula of the compound propene?

The IUPAC name of is

What is the name for the following?

A hydrocarbon contains only the elements

What type of compound is

In a condensed structural formula, each carbon atom is

The reaction of butane with oxygen is called

The compound 1-butyne contains

What is the major product of the reaction shown below?

An alkene is a hydrocarbon that contains at least one ________ bond.

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