Question 1

Some alkenes have cis-trans isomers because

Accepted Answer

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

Question 2

What is the name for a nine-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 3

The IUPAC name for ethylene is

Accepted Answer

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

Question 4

Which one of the following is NOT an organic substance?

Accepted Answer

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

Question 5

Water can be added to alkenes to produce acids.

Accepted Answer

A) True 
 B)False

Question 6

Carbon atoms always have how many covalent bonds?

Accepted Answer

A) one 
B) two 
C) three 
D) four 
E) five 
A) one 
B) two 
C) three 
D) four 
E) five

Question 7

Which of the following would result from the polymerization of ethene?

Accepted Answer

A) 
  
B) 
  
C) 
  
D) = C = C = C = C = 
E) - CH2 - CH2 - CH2 - CH2 - 
A) 
  
B) 
  
C) 
  
D) = C = C = C = C = 
E) - CH2 - CH2 - CH2 - CH2 -

Question 8

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

Accepted Answer

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

Question 9

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

Accepted Answer

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

Question 10

What is the condensed structural formula of the compound propene?

Accepted Answer

A) CH₃-CH2-CH₃ 
B) H₃C = CH2-CH₃ 
C) H2C = C = CH2 
D) CH₃-CH = CH2 
E) HC ≡ C-CH₃ 
A) CH₃-CH2-CH₃ 
B) H₃C = CH2-CH₃ 
C) H2C = C = CH2 
D) CH₃-CH = CH2 
E) HC ≡ C-CH₃

Question 11

The IUPAC name for CH₃ -CH2-C ≡ C-CH₃ is

Accepted Answer

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

Question 12

The IUPAC name for CH₃ -Cl is

Accepted Answer

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

Question 13

What is the name of this compound? CH₃ - CH2- CH2- CH2- CH₃

Accepted Answer

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

Question 14

The bond angles of tetravalent carbon are all approximately

Accepted Answer

A) 90°. 
B) 109°. 
C) 60°. 
D) 100°. 
E) 45°. 
A) 90°. 
B) 109°. 
C) 60°. 
D) 100°. 
E) 45°.

Question 15

Organic chemistry is the study of the chemistry of compounds of

Accepted Answer

A) oxygen. 
B) hydrogen. 
C) living things. 
D) polymers. 
E) carbon. 
A) oxygen. 
B) hydrogen. 
C) living things. 
D) polymers. 
E) carbon.

Question 16

What is the IUPAC name for the following?

Accepted Answer

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

Question 17

There are millions of organic compounds.

Accepted Answer

A) True 
 B)False

Question 18

What is the 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

Question 19

Octane is a seven-carbon linear alkane.

Accepted Answer

A) True 
 B)False

Question 20

Organic chemistry is the study of the chemistry of carbon compounds.

Accepted Answer

A) True 
 B)False

Exam 12: Introduction to Organic Chemistry: Hydrocarbons

Some alkenes have cis-trans isomers because

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

The IUPAC name for ethylene is

Which one of the following is NOT an organic substance?

Water can be added to alkenes to produce acids.

Carbon atoms always have how many covalent bonds?

Which of the following would result from the polymerization of ethene?

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

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

What is the condensed structural formula of the compound propene?

The IUPAC name for CH₃ -CH2-C ≡ C-CH₃ is

The IUPAC name for CH₃ -Cl is

What is the name of this compound? CH₃ - CH2- CH2- CH2- CH₃

The bond angles of tetravalent carbon are all approximately

Organic chemistry is the study of the chemistry of compounds of

What is the IUPAC name for the following?

There are millions of organic compounds.

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

Octane is a seven-carbon linear alkane.

Organic chemistry is the study of the chemistry of carbon compounds.

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