Question 1

Which of the following compounds exhibit geometric isomerism?

Accepted Answer

A)  CH₂=CH-CH3 
B)  CCl₂=CBr₂ 
C)  CH3-CH=CH-CH3 
D)  CCl₂=CHBr 
E)  All of the above exhibit geometric isomerism. 
A)  CH₂=CH-CH3 
B)  CCl₂=CBr₂ 
C)  CH3-CH=CH-CH3 
D)  CCl₂=CHBr 
E)  All of the above exhibit geometric isomerism. C

Question 2

What is the product of this reaction? 
CH3CH₂CH = CHCH3 + Cl₂ → ?

Accepted Answer

A)  CH3CH₂CH₂CH₂CH3 
B)    
C)    
D)    
E)    
A)  CH3CH₂CH₂CH₂CH3 
B)    
C)    
D)    
E)    C

Question 3

Long-chain molecules that consist of many repeating units are called

Accepted Answer

A)  polymers. 
B)  monomers. 
C)  organic compounds. 
D)  alkenes. 
E)  alkanes. 
A)  polymers. 
B)  monomers. 
C)  organic compounds. 
D)  alkenes. 
E)  alkanes. A

Question 4

Insects communicate with chemicals called

Accepted Answer

A)  markers. 
B)  isomers. 
C)  signals. 
D)  pheromones. 
E)  scents. 
A)  markers. 
B)  isomers. 
C)  signals. 
D)  pheromones. 
E)  scents.

Question 5

When bromine atoms are attached to carbon 1 and carbon 4 in benzene, the compound is named

Accepted Answer

A)  dibromobenzene. 
B)  o-dibromobenzene. 
C)  m-dibromobenzene. 
D)  p-dibromobenzene. 
E)  f-dibromobenzene. 
A)  dibromobenzene. 
B)  o-dibromobenzene. 
C)  m-dibromobenzene. 
D)  p-dibromobenzene. 
E)  f-dibromobenzene.

Question 6

All alkenes show cis-trans isomerism.

Accepted Answer

A) True 
 B)False

Question 7

The chemical reaction of 2-butene and HCl yields what product?

Accepted Answer

A)  CH3CH₂CH₂CH3 
B)    
C)    
D)    
E)    
A)  CH3CH₂CH₂CH3 
B)    
C)    
D)    
E)

Question 8

The structural formula of benzene is often represented as a

Accepted Answer

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

Question 9

Which of the following names are correct?

Accepted Answer

A)  3-butyl-4-pentene 
B)  3-ethyl-1-heptene 
C)  3-etheneheptane 
D)  5-ethyl-6-heptene 
E)  All of the above are correct. 
A)  3-butyl-4-pentene 
B)  3-ethyl-1-heptene 
C)  3-etheneheptane 
D)  5-ethyl-6-heptene 
E)  All of the above are correct.

Question 10

Name the following compound.

Accepted Answer

A)  2,2-diethylpenatane 
B)  2,2-diethylpentene 
C)  4-ethyl-4-methyl-5-hexene 
D)  3-ethyl-3-methyl-1-hexene 
E)  4-ethyl-4-methylhexane 
A)  2,2-diethylpenatane 
B)  2,2-diethylpentene 
C)  4-ethyl-4-methyl-5-hexene 
D)  3-ethyl-3-methyl-1-hexene 
E)  4-ethyl-4-methylhexane

Question 11

The name of the compound shown below is

Accepted Answer

A)  o-ethylmethylcyclohexane. 
B)  m-ethylmethylcyclohexane. 
C)  o-ethyltoluene. 
D)  m-ethyltoluene. 
E)  p-ethyltoluene. 
A)  o-ethylmethylcyclohexane. 
B)  m-ethylmethylcyclohexane. 
C)  o-ethyltoluene. 
D)  m-ethyltoluene. 
E)  p-ethyltoluene.

Question 12

Fragrances and flavors are often compounds with more than one functional group (for example, an alkene that also contains an aldehyde).

Accepted Answer

A) True 
 B)False

Question 13

What are the prefixes used to designate substituent positions on disubstituted benzene compounds?

Accepted Answer

A)  ortho-, meta-, and para-. 
B)  cis- and trans- 
C)  syn- and anti- 
D)  All of the above. 
E)  None of the above. 
A)  ortho-, meta-, and para-. 
B)  cis- and trans- 
C)  syn- and anti- 
D)  All of the above. 
E)  None of the above.

Question 14

Alkynes contain double bonds.

Accepted Answer

A) True 
 B)False

Question 15

Most products made from polymers can be recycled.

Accepted Answer

A) True 
 B)False

Question 16

Polymers are large molecules consisting of repeating units.

Accepted Answer

A) True 
 B)False

Question 17

Which set of reactants would give this compound?

Accepted Answer

A)  CH3CH?CH?CH3 + 2HCl 
B)  CH3CH $=$ CHCH3 + 2HCl 
C)  CH3CH?CH $=$ CH? + 2HCl 
D)  CH3CH $=$ CHCH3 + Cl? 
E)  CH3CH?CH $=$ CH? + Cl? 
A)  CH3CH?CH?CH3 + 2HCl 
B)  CH3CH $=$ CHCH3 + 2HCl 
C)  CH3CH?CH $=$ CH? + 2HCl 
D)  CH3CH $=$ CHCH3 + Cl? 
E)  CH3CH?CH $=$ CH? + Cl?

Question 18

Ortho compounds have substituents on the 1 and 3 positions of the benzene ring.

Accepted Answer

A) True 
 B)False

Question 19

The reaction of cyclohexene and Cl₂ yields

Accepted Answer

A)  1-chlorocyclohexene. 
B)  1,2-dichlorocyclohexane. 
C)  1,3-dichlorocyclohexane. 
D)  2,3-dichlorocyclohexane. 
E)  3,4-dichlorocyclohexane. 
A)  1-chlorocyclohexene. 
B)  1,2-dichlorocyclohexane. 
C)  1,3-dichlorocyclohexane. 
D)  2,3-dichlorocyclohexane. 
E)  3,4-dichlorocyclohexane.

Question 20

An unsaturated compound always

Accepted Answer

A)  is a cycloalkane. 
B)  contains a double bond. 
C)  contains a triple bond. 
D)  contains at least one double or triple bond. 
E)  is aromatic. 
A)  is a cycloalkane. 
B)  contains a double bond. 
C)  contains a triple bond. 
D)  contains at least one double or triple bond. 
E)  is aromatic.

Exam 12: Alkenes, Alkynes, and Aromatic Compounds

Which of the following compounds exhibit geometric isomerism?

What is the product of this reaction? CH3CH₂CH = CHCH3 + Cl₂ → ?

Long-chain molecules that consist of many repeating units are called

Insects communicate with chemicals called

When bromine atoms are attached to carbon 1 and carbon 4 in benzene, the compound is named

All alkenes show cis-trans isomerism.

The chemical reaction of 2-butene and HCl yields what product?

The structural formula of benzene is often represented as a

Which of the following names are correct?

Name the following compound.

The name of the compound shown below is

Fragrances and flavors are often compounds with more than one functional group (for example, an alkene that also contains an aldehyde).

What are the prefixes used to designate substituent positions on disubstituted benzene compounds?

Alkynes contain double bonds.

Most products made from polymers can be recycled.

Polymers are large molecules consisting of repeating units.

Which set of reactants would give this compound?

Ortho compounds have substituents on the 1 and 3 positions of the benzene ring.

The reaction of cyclohexene and Cl₂ yields

An unsaturated compound always

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What is the product of this reaction? CH₃CH₂CH = CHCH₃ + Cl₂ → ?