Question 1

What is the major product of the following reaction?

Accepted Answer

A)  I
B)  II
C)  III
D)  IV
E)  V

Question 2

How many signals does one expect in the proton decoupled 13C NMR spectrum of o-xylene?

Accepted Answer

A)  8
B)  6
C)  4
D)  3
E)  2

Question 3

Provide a detailed, stepwise mechanism for the following reaction.

Accepted Answer

The answer of Provide a detailed, stepwise mechanism for the...

Question 4

Draw the four major resonance structures of the carbocation intermediate in the reaction of anisole with HNO3/H2SO4 to yield p-nitroanisole.

Accepted Answer

Question 5

Draw the three major resonance structures of the carbocation intermediate in the reaction of acetophenone with HNO3/H2SO4 to yield o-nitroacetophenone. Circle the resonance form which is less stable than the other two.

Accepted Answer

Question 6

What is the major product of the following reaction?

Accepted Answer

A)  I
B)  II
C)  III
D)  IV
E)  V

Question 7

Which of the following substituents acts as a moderate activator and o/p director in electrophilic aromatic substitution reactions?

Accepted Answer

A)  -Br
B)  -SO3H
C)  -CO2H
D)  -NHCOR
E)  -CHO

Question 8

Which reagent is least likely to be used in the conversion shown? 2Cr2O7 B) HNO3 C) Sn D) NaNO2 E) HCl" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  Na2Cr2O7
B)  HNO3
C)  Sn
D)  NaNO2
E)  HCl

Question 9

Give the best product for the following reaction.

Accepted Answer

The answer of Give the best product for the following...

Question 10

What is the name of the following compound?

Accepted Answer

A)  p-dichlorobenzene
B)  1,4-dichlorobenzene
C)  phenyldichloride
D)  A and B
E)  B and C

Question 11

Identify the best product for the following reaction.

Accepted Answer

A)   
B)   
C)   
D)   
E)

Question 12

Give the product(s)for the following reaction.

Accepted Answer

The answer of Give the product(s)for the following reaction. ...

Question 13

Which of the following compounds reacts most slowly during nitration?

Accepted Answer

A)  I
B)  II
C)  III
D)  IV
E)  V

Question 14

Which of the following substrates is an electron withdrawing group overall?

Accepted Answer

A)  I
B)  II
C)  III
D)  IV
E)  V

Question 15

Name the following structure.

Accepted Answer

A)  2-chlorobenzoic acid
B)  3-chlorobenzoic acid
C)  2-chlorobenzaldehyde
D)  3-chlorobenzaldehyde
E)  3-chloroacetophenone

Question 16

What sequence of reagents can be used to make m-butylbenzoic acid from benzene?

Accepted Answer

The answer of What sequence of reagents can be used...

Question 17

Draw p-aminobenzoic acid.

Accepted Answer

The answer of Draw p-aminobenzoic acid....

Question 18

Bromination of benzene requires a Lewis acid catalyst while bromination of cyclohexene does not. Explain this difference in reactivity.

Accepted Answer

An alkene is a better nucleoph...

Question 19

Which of the following is most likely to be the first step in the general mechanism for electrophilic substitution reactions?

Accepted Answer

A)  I
B)  II
C)  III
D)  IV
E)  V

Question 20

Can one distinguish among the three isomeric xylenes using 13C NMR? Explain.

Accepted Answer

Yes. In the proton decoupled ¹³C...

Exam 19: Reactions of Benzene and Substituted Benzenes

Name the following structure.

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What is the major product of the following reaction?

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Which reagent is least likely to be used in the conversion shown?

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Provide a detailed, stepwise mechanism for the following reaction.

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Identify the best product for the following reaction.

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Bromination of benzene requires a Lewis acid catalyst while bromination of cyclohexene does not. Explain this difference in reactivity.

Correct AnswerverifiedAn alkene is a better nucleoph...View AnswerShow Answer

Which of the following substrates is an electron withdrawing group overall?

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Draw the four major resonance structures of the carbocation intermediate in the reaction of anisole with HNO3/H2SO4 to yield p-nitroanisole.

Correct AnswerverifiedShow Answer

Give the product(s)for the following reaction.

Correct AnswerverifiedShow Answer

What sequence of reagents can be used to make m-butylbenzoic acid from benzene?

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Give the best product for the following reaction.

Correct AnswerverifiedShow Answer

What is the major product of the following reaction?

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How many signals does one expect in the proton decoupled 13C NMR spectrum of o-xylene?

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Can one distinguish among the three isomeric xylenes using 13C NMR? Explain.

Correct AnswerverifiedYes. In the proton decoupled 13C...View AnswerShow Answer

What is the name of the following compound?

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Which of the following substituents acts as a moderate activator and o/p director in electrophilic aromatic substitution reactions?

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Which of the following is most likely to be the first step in the general mechanism for electrophilic substitution reactions?

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Draw p-aminobenzoic acid.

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Which of the following compounds reacts most slowly during nitration?

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Draw the three major resonance structures of the carbocation intermediate in the reaction of acetophenone with HNO3/H2SO4 to yield o-nitroacetophenone. Circle the resonance form which is less stable than the other two.

Correct AnswerverifiedShow Answer

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An alkene is a better nucleoph...
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Draw the four major resonance structures of the carbocation intermediate in the reaction of anisole with HNO₃/H₂SO₄ to yield p-nitroanisole.

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Correct Answer
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How many signals does one expect in the proton decoupled ¹³C NMR spectrum of o-xylene?

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Can one distinguish among the three isomeric xylenes using ¹³C NMR? Explain.

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Yes. In the proton decoupled ¹³C...
View Answer

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Correct Answer
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Correct Answer
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Draw the three major resonance structures of the carbocation intermediate in the reaction of acetophenone with HNO₃/H₂SO₄ to yield o-nitroacetophenone. Circle the resonance form which is less stable than the other two.

Correct Answer
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