Question 1

Which of the following is not a correct IUPAC name for an alkene?

Accepted Answer

A)  2-methyl-1-butene 
B)  2-methyl-2-butene 
C)  2-methyl-3-butene 
D)  None, these are all correct IUPAC names. 
A)  2-methyl-1-butene 
B)  2-methyl-2-butene 
C)  2-methyl-3-butene 
D)  None, these are all correct IUPAC names.

Question 2

Cis-trans isomers do not exist for which of the following compounds, all of which have the molecular formula C3H4Br2?

Accepted Answer

A)  1,1-dibromopropene 
B)  1,2-dibromopropene 
C)  1,3-dibromopropene 
D)  They do not exist for any of these three molecules. 
A)  1,1-dibromopropene 
B)  1,2-dibromopropene 
C)  1,3-dibromopropene 
D)  They do not exist for any of these three molecules.

Question 3

Which of the following structures corresponds to cis-3-methyl-2-hexene?

Accepted Answer

A)  ​
  
B)  ​
  
C)  ​
  
D)  ​
  
A)  ​
  
B)  ​
  
C)  ​
  
D)  ​

Question 4

Including cis-trans isomers, how many different alkenes have the molecular formula C5H10?

Accepted Answer

A)  4 
B)  5 
C)  6 
D)  7 
A)  4 
B)  5 
C)  6 
D)  7

Question 5

Which of the following is true in the IUPAC system for naming alkenes?

Accepted Answer

A)  The alkene is always named based on the longest carbon chain. 
B)  The position of the double bond is always given the highest possible number. 
C)  The position and identity of substituents determines the number associated with the position of the double bond. 
D)  None of the above is correct. 
A)  The alkene is always named based on the longest carbon chain. 
B)  The position of the double bond is always given the highest possible number. 
C)  The position and identity of substituents determines the number associated with the position of the double bond. 
D)  None of the above is correct.

Question 6

Examine the following reaction;   This reaction occurs in which step of the hydrohalogenation reaction mechanism?

Accepted Answer

A)  1 
B)  2 
C)  3 
A)  1 
B)  2 
C)  3

Question 7

Which of the following alkenes, all of which have the molecular formula C5H10, would you expect to have the lowest boiling point?

Accepted Answer

A)  4-methyl-1-pentene 
B)  4-methyl-2-pentene 
C)  2,3-dimethyl-2-butene 
D)  2-hexene 
A)  4-methyl-1-pentene 
B)  4-methyl-2-pentene 
C)  2,3-dimethyl-2-butene 
D)  2-hexene

Question 8

Currently there is extensive recycling of which of the following polymers?

Accepted Answer

A)  high-density polyethylene 
B)  low-density polyethylene 
C)  both a and b 
D)  neither a nor b 
A)  high-density polyethylene 
B)  low-density polyethylene 
C)  both a and b 
D)  neither a nor b

Question 9

What type of alcohol is formed by the hydration of 2-methyl-2-butene?

Accepted Answer

A)  primary 
B)  secondary 
C)  tertiary 
D)  None of these, the product is not an alcohol. 
A)  primary 
B)  secondary 
C)  tertiary 
D)  None of these, the product is not an alcohol.

Question 10

Which of the following is the most characteristic reaction of alkenes?

Accepted Answer

A)  addition 
B)  oxidation 
C)  reduction 
D)  substitution 
A)  addition 
B)  oxidation 
C)  reduction 
D)  substitution

Question 11

How many cycloalkenes have the molecular formula C4H6?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 12

Which of the following reactions involves the addition of different groups to the two ends of a double bond?

Accepted Answer

A)  bromination 
B)  hydrogenation 
C)  both a and b 
D)  neither a nor b 
A)  bromination 
B)  hydrogenation 
C)  both a and b 
D)  neither a nor b

Question 13

What is the correct IUPAC name for the following compound?

Accepted Answer

A)  trans-3-propyl-3-hexene 
B)  cis-3-propyl-3-hexene 
C)  trans-4-ethyl-3-heptene 
D)  cis-4-ethyl-3-heptene 
A)  trans-3-propyl-3-hexene 
B)  cis-3-propyl-3-hexene 
C)  trans-4-ethyl-3-heptene 
D)  cis-4-ethyl-3-heptene

Question 14

Which of the following is not a correct IUPAC name?

Accepted Answer

A)  cis-2,3-dimethylcyclopentene 
B)  cis-3,4-dimethylcyclopentene 
C)  cis-3,5-dimethylcyclopentene 
D)  None, they are all correct. 
A)  cis-2,3-dimethylcyclopentene 
B)  cis-3,4-dimethylcyclopentene 
C)  cis-3,5-dimethylcyclopentene 
D)  None, they are all correct.

Question 15

Examine the following reaction.   A B C Which of the following describes this reaction?

Accepted Answer

A)  Involves a secondary carbocation. 
B)  A represents the nucleophile. 
C)  B represents the electrophile. 
D)  Produces a new carbon to carbon bond. 
E)  All of the above except d are correct. 
A)  Involves a secondary carbocation. 
B)  A represents the nucleophile. 
C)  B represents the electrophile. 
D)  Produces a new carbon to carbon bond. 
E)  All of the above except d are correct.

Question 16

Which of the following is a representation of a portion of the polystyrene chain?

Accepted Answer

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

Question 17

Four patterns can be noted for certain organic reactions;
Pattern 1: Add a proton.
Pattern 2: Take a proton away.
Pattern 3: Reaction between an electrophile and nucleophile to form a new covalent bond.
Pattern 4: Reaction of proton donor with a carbon to carbon double bond to from a new covalent bond.
-To which pattern does the following reaction belong?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 18

Including cis-trans isomers, how many different alkenes have the molecular formula C4H8?

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  5 
A)  2 
B)  3 
C)  4 
D)  5

Question 19

Of the following alkenes, all of which have the molecular formula C5H10, which would you expect to have the highest boiling point?

Accepted Answer

A)  4-methyl-1-pentene 
B)  4-methyl-2-pentene 
C)  2,3-dimethyl-2-butene 
D)  2-hexene 
A)  4-methyl-1-pentene 
B)  4-methyl-2-pentene 
C)  2,3-dimethyl-2-butene 
D)  2-hexene

Question 20

Which of the following curved arrows correctly describes the second step in the reaction of propene with hydrogen bromide?

Accepted Answer

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

Exam 12: Alkenes and Alkynes

Which of the following is not a correct IUPAC name for an alkene?

Cis-trans isomers do not exist for which of the following compounds, all of which have the molecular formula C3H4Br2?

Which of the following structures corresponds to cis-3-methyl-2-hexene?

Including cis-trans isomers, how many different alkenes have the molecular formula C5H10?

Which of the following is true in the IUPAC system for naming alkenes?

Examine the following reaction; This reaction occurs in which step of the hydrohalogenation reaction mechanism?

Which of the following alkenes, all of which have the molecular formula C5H10, would you expect to have the lowest boiling point?

Currently there is extensive recycling of which of the following polymers?

What type of alcohol is formed by the hydration of 2-methyl-2-butene?

Which of the following is the most characteristic reaction of alkenes?

How many cycloalkenes have the molecular formula C4H6?

Which of the following reactions involves the addition of different groups to the two ends of a double bond?

What is the correct IUPAC name for the following compound?

Which of the following is not a correct IUPAC name?

Examine the following reaction. A B C Which of the following describes this reaction?

Which of the following is a representation of a portion of the polystyrene chain?

Including cis-trans isomers, how many different alkenes have the molecular formula C4H8?

Of the following alkenes, all of which have the molecular formula C5H10, which would you expect to have the highest boiling point?

Which of the following curved arrows correctly describes the second step in the reaction of propene with hydrogen bromide?

Matter, Energy, and Measurement

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Chemical Reactions

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Solutions and Colloids

Reaction Rates and Chemical Equilibrium

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Nuclear Chemistry

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Alkanes

Benzene and Its Derivatives

Alcohols, Ethers, and Thiols

Chirality: the Handedness of Molecules

Amines

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Carboxylic Anhydrides, Esters, and Amides

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Filters

Cis-trans isomers do not exist for which of the following compounds, all of which have the molecular formula C₃H₄Br₂?

Including cis-trans isomers, how many different alkenes have the molecular formula C₅H₁₀?

Which of the following alkenes, all of which have the molecular formula C₅H₁₀, would you expect to have the lowest boiling point?

How many cycloalkenes have the molecular formula C₄H₆?

Including cis-trans isomers, how many different alkenes have the molecular formula C₄H₈?

Of the following alkenes, all of which have the molecular formula C₅H₁₀, which would you expect to have the highest boiling point?