Question 1

What type of reactive intermediate is formed in the reaction of propene with hydrogen bromide in the presence of peroxides to give 1-bromopropane?

Accepted Answer

A)   1° radical
B)   1° carbocation
C)   1° radical.
D)   2° radicalE) A) and B)
F) B) and C)

Question 2

The IUPAC name for the following substance is trans-1-bromo-4-methylcyclohexane.

Accepted Answer

A) True 
 B)False

Question 3

Consider the following reaction.  In the presence of peroxides, the major product of the reaction is shown below.

Accepted Answer

A) True 
 B)False

Question 4

The number of possible monobromination products, including cis-trans isomers, of methylcyclopentane is ______.

Accepted Answer

The answer of The number of possible monobromination products, including...

Question 5

Provide the IUPAC name of the following compound.

Accepted Answer

(S)-4-brom...

Question 6

Which of the following statements is not true?

Accepted Answer

A)   Homolytic cleavage of a bond in a neutral molecule gives two radicals.
B)   Radicals have one or more unpaired electrons.
C)   Movement of single electrons is depicted using a "fishhook arrow".
D)   The C−F bond is the weakest bond between carbon atom and a halogen.E) B) and C)
F) All of the above

Question 7

Provide the IUPAC name of the following compound (shown as a Fischer projection).

Accepted Answer

The answer of Provide the IUPAC name of the following...

Question 8

The structure of (S)-2-bromobutane is given below.

Accepted Answer

A) True 
 B)False

Question 9

The boiling points of alkanes increase as the length of the carbon chain increases but decrease as the amount of branching increases.

Accepted Answer

A) True 
 B)False

Question 10

Consider the following reaction.  In the absence of peroxides, the major product of the reaction is shown below.

Accepted Answer

A) True 
 B)False

Question 11

What is the major organic product obtained from the following reaction?

Accepted Answer

The answer of What is the major organic product obtained...

Question 12

Which of the following accounts for the anti-Markovnikov regiochemistry of the reaction of an alkene with HBr in the presence of peroxides?

Accepted Answer

A)   The alkene reacts with HBr to give a carbocation.
B)   The alkene reacts with a bromine atom to give a radical.
C)   The alkene reacts with a hydrogen atom to give a radical.
D)   The alkene reacts with peroxide to five an allylic radical.E) C) and D)
F) All of the above

Question 13

Which halogen is most useful in the regioselective radical halogenation of alkenes??

Accepted Answer

A)   fluorine
B)   chlorine
C)   bromine
D)   iodineE) None of the above
F) A) and D)

Question 14

Provide the IUPAC name of the following compound.

Accepted Answer

(S)-2-chlo...

Question 15

What is the major product in the following reaction? ​

Accepted Answer

A)   Only I
B)   Only II
C)   Only III
D)   I, II, and III in equal amountsE) C) and D)
F) A) and D)

Question 16

Which of the following has the list of compounds in the correct order of decreasing polarity (more polar > less polar) ?

Accepted Answer

A)   CCl4 > CHCl3 > CH2Cl2
B)   CH2Cl2 > CHCl3 > CCl4
C)   CCl4 > CH2Cl2 > CHCl3
D)   CHCl3 > CCl4 > CH2Cl2E) All of the above
F) A) and D)

Question 17

What is the geometry of the central carbon atom of a tert-butyl radical?

Accepted Answer

A)   tetrahedral
B)   trigonal planar
C)   trigonal pyramidal
D)   square planarE) B) and C)
F) None of the above

Question 18

What is the major organic product obtained from the following reaction?

Accepted Answer

A)   1
B)   2
C)   3
D)   4E) All of the above
F) C) and D)

Question 19

What is the IUPAC name of the following compound?

Accepted Answer

A)   (R) -2-bromo-2-vinylpentane
B)   (S) -2-bromo-2-vinylpentane
C)   (S) -3-bromo-3-propyl-1-butene
D)   (R) -3-bromo-3-methyl-1-hexeneE) A) and B)
F) A) and C)

Question 20

During bromination using NBS, the concentration of bromine remains ________throughout the course of the reaction.

Accepted Answer

The answer of During bromination using NBS, the concentration of...

Exam 8: Haloalkanes, Halogenation, and Radical Reactions

Which halogen is most useful in the regioselective radical halogenation of alkenes??

Correct AnswerverifiedShow Answer

Consider the following reaction. In the absence of peroxides, the major product of the reaction is shown below.

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Provide the IUPAC name of the following compound.

Correct Answerverified(S)-4-brom...View AnswerShow Answer

The boiling points of alkanes increase as the length of the carbon chain increases but decrease as the amount of branching increases.

Correct AnswerverifiedShow Answer

The number of possible monobromination products, including cis-trans isomers, of methylcyclopentane is ______.

Correct AnswerverifiedShow Answer

Which of the following accounts for the anti-Markovnikov regiochemistry of the reaction of an alkene with HBr in the presence of peroxides?

Correct AnswerverifiedShow Answer

What is the major organic product obtained from the following reaction?

Correct AnswerverifiedShow Answer

During bromination using NBS, the concentration of bromine remains ________throughout the course of the reaction.

Correct AnswerverifiedShow Answer

What is the major organic product obtained from the following reaction?

Correct AnswerverifiedShow Answer

What is the geometry of the central carbon atom of a tert-butyl radical?

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What is the major product in the following reaction? ​

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What is the IUPAC name of the following compound?

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Consider the following reaction. In the presence of peroxides, the major product of the reaction is shown below.

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Provide the IUPAC name of the following compound.

Correct Answerverified(S)-2-chlo...View AnswerShow Answer

What type of reactive intermediate is formed in the reaction of propene with hydrogen bromide in the presence of peroxides to give 1-bromopropane?

Correct AnswerverifiedShow Answer

The IUPAC name for the following substance is trans-1-bromo-4-methylcyclohexane.

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Which of the following has the list of compounds in the correct order of decreasing polarity (more polar > less polar) ?

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Which of the following statements is not true?

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The structure of (S)-2-bromobutane is given below.

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Provide the IUPAC name of the following compound (shown as a Fischer projection).

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(S)-4-brom...
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What is the major product in the following reaction?

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(S)-2-chlo...
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