Question 1

Which of the following is another name for cyclobutadiene?

Accepted Answer

A)   [2]annulene
B)   [4]annulene
C)   [6]annulene
D)   Dewar benzene
E)   antibenzeneF) C) and D)
G) A) and B)

Question 2

Provide the structure of m-nitrophenol.

Accepted Answer

The answer of Provide the structure of m-nitrophenol....

Question 3

Rank the following in order of increasing pKa (from lowest to highest pKa) .

Accepted Answer

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

Question 4

Classify the compound below as aromatic, antiaromatic, or nonaromatic. Assume planarity of the π network.

Accepted Answer

The answer of Classify the compound below as aromatic, antiaromatic,...

Question 5

Provide the structure of 2-bromo-4-chlorobenzoic acid.

Accepted Answer

The answer of Provide the structure of 2-bromo-4-chlorobenzoic acid....

Question 6

Classify pyridine as aromatic, antiaromatic, or nonaromatic. Assume planarity of the π network.

Accepted Answer

The answer of Classify pyridine as aromatic, antiaromatic, or nonaromatic....

Question 7

Which of the following structures is aromatic?

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) All of the above
G) A) and D)

Question 8

Provide the name of the compound shown below.

Accepted Answer

o-chlorobe...

Question 9

Which sequence ranks the indicated protons in order of increasing acidity?

Accepted Answer

A)   1 
B)   2 
C)   3 
D)   3 < 2 < 1E) None of the above
F) B) and C)

Question 10

Provide the structure of the major organic product which results when phenanthrene is treated with Br2 in carbon tetrachloride.

Accepted Answer

Question 11

Classify the compound below as aromatic, antiaromatic, or nonaromatic. Assume planarity of the π network.

Accepted Answer

The answer of Classify the compound below as aromatic, antiaromatic,...

Question 12

Which of the following is the same as the tropylium ion?

Accepted Answer

A)   cycloheptatrienyl cation
B)   cycloheptatrienyl anion
C)   cyclopentadienyl cation
D)   cyclopentadienyl anion
E)   cyclopropenyl anionF) C) and D)
G) None of the above

Question 13

Which of the following compounds has the most signals in the proton-decoupled 13C NMR spectrum?

Accepted Answer

A)   o-dibromobenzene
B)   m-dibromobenzene
C)   p-dibromobenzene
D)   1,3,5-tribromobenzene
E)   1,2,3,4-tetrabromobenzeneF) C) and E)
G) All of the above

Question 14

Provide an acceptable name for the compound below.

Accepted Answer

para-dichl...

Question 15

Provide the structure of anisole.

Accepted Answer

The answer of Provide the structure of anisole....

Question 16

Which of the following is also an acceptable name for 1,3,5-trimethylbenzene?

Accepted Answer

A)   styrene
B)   mesitylene
C)   cumene
D)   cymene
E)   1,3,5-xyleneF) B) and D)
G) B) and C)

Question 17

Classify pyrrole as aromatic, antiaromatic, or nonaromatic. Assume planarity of the π network.

Accepted Answer

The answer of Classify pyrrole as aromatic, antiaromatic, or nonaromatic....

Question 18

Which is more stable, cyclobutadiene or 1,3-butadiene? Explain.

Accepted Answer

1,3-Butadiene is more stable. ...

Question 19

What is the bond order of the carbon-carbon bonds in benzene?

Accepted Answer

A)   0.5
B)   1
C)   1.5
D)   2
E)   3F) B) and D)
G) B) and E)

Question 20

How many distinct nodal planes which are perpendicular to the molecular plane are present in the π4* orbital of benzene?

Accepted Answer

A)   0
B)   1
C)   2
D)   4
E)   5F) B) and D)
G) C) and D)

Exam 16: Aromatic Compounds

Which of the following is another name for cyclobutadiene?

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Which of the following structures is aromatic?

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Rank the following in order of increasing pKa (from lowest to highest pKa) .

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Which of the following compounds has the most signals in the proton-decoupled 13C NMR spectrum?

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Provide the structure of the major organic product which results when phenanthrene is treated with Br2 in carbon tetrachloride.

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Which sequence ranks the indicated protons in order of increasing acidity?

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Provide an acceptable name for the compound below.

Correct Answerverifiedpara-dichl...View AnswerShow Answer

Provide the structure of anisole.

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Which of the following is the same as the tropylium ion?

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Provide the name of the compound shown below.

Correct Answerverifiedo-chlorobe...View AnswerShow Answer

Provide the structure of 2-bromo-4-chlorobenzoic acid.

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How many distinct nodal planes which are perpendicular to the molecular plane are present in the π4* orbital of benzene?

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What is the bond order of the carbon-carbon bonds in benzene?

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Classify pyrrole as aromatic, antiaromatic, or nonaromatic. Assume planarity of the π network.

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Classify the compound below as aromatic, antiaromatic, or nonaromatic. Assume planarity of the π network.

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Classify pyridine as aromatic, antiaromatic, or nonaromatic. Assume planarity of the π network.

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Provide the structure of m-nitrophenol.

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Classify the compound below as aromatic, antiaromatic, or nonaromatic. Assume planarity of the π network.

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Which is more stable, cyclobutadiene or 1,3-butadiene? Explain.

Correct Answerverified1,3-Butadiene is more stable. ...View AnswerShow Answer

Which of the following is also an acceptable name for 1,3,5-trimethylbenzene?

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Which of the following compounds has the most signals in the proton-decoupled ¹³C NMR spectrum?

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Provide the structure of the major organic product which results when phenanthrene is treated with Br₂ in carbon tetrachloride.

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para-dichl...
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o-chlorobe...
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How many distinct nodal planes which are perpendicular to the molecular plane are present in the π₄^* orbital of benzene?

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1,3-Butadiene is more stable. ...
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