Question 1

Which of the following is not true about [the bridged [10]annulene shown below?

Accepted Answer

A)   all of the carbon atoms of bridged [10]annulene are all in the same plane
B)   bridged [10]annulene is aromatic
C)   bridged [10]annulene undergoes substitution reactions similar to benzene
D)   bridged [10]annulene has 10 pi electronsE) B) and C)
F) A) and B)

Question 2

The following compound should be name as 1-((1S, 3R)-3-methylcyclohexyl)benzene.

Accepted Answer

A) True 
 B)False

Question 3

What is the approximate length of the carbon-carbon bonds in benzene?

Accepted Answer

A)   110 pm
B)   121 pm
C)   139 pm
D)   156 pmE) All of the above
F) B) and D)

Question 4

What is the correct assignment of the names of the following heterocycles?

Accepted Answer

A)   1 = pyrrole; 2 = thiophene; 3 = pyridine
B)   1 = thiophene; 2 = furan; 3 = pyrrole
C)   1 = pyridine; 2 = thiophene; 3 = furan
D)   1 = pyridine; 2 = thiophene; 3 = pyrroleE) All of the above
F) None of the above

Question 5

The following compound could be produced by reaction of phenol with bromobenzene.

Accepted Answer

A) True 
 B)False

Question 6

List all of the requirements of a molecule for it to be considered aromatic.

Accepted Answer

An aromatic molecule has an un...

Question 7

Which of the following does not undergo oxidation in the presence of H2CrO4? 2CrO4?   A)  1 B)  2 C)  3 D)  4" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   1
B)   2
C)   3
D)   4E) A) and B)
F) A) and C)

Question 8

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

Accepted Answer

A)   1
B)   2
C)   3
D)   4E) A) and B)
F) A) and D)

Question 9

Consider the following structure.  The 1H NMR spectrum of this compound −60°C shows a peak at 7.6 ppm, this would indicate aromaticity.

Accepted Answer

A) True 
 B)False

Question 10

According to Hückel criteria, sulfathiazole is predicted to be ___________.

Accepted Answer

The answer of According to Hückel criteria, sulfathiazole is predicted...

Question 11

What is the correct assignment of the names of the following fused arenes?

Accepted Answer

A)   1 = naphthalene; 2 = anthracene; 3 = pyrene
B)   1 = naphthalene; 2 = phenanthrene; 3 = coronene
C)   1 = naphthalene; 2 = anthracene; 3 = benzo[a]pyrene
D)   1 = anthracene; 2 = naphthalene; 3 = coroneneE) B) and C)
F) A) and D)

Question 12

Which orbitals contain the lone pairs on the nitrogen atoms labeled i and ii in the imidazole ring? 2;; ii = sp3 B)  i = p;; ii = sp3 C)  i = p;; ii = sp3. D)  i = p;; ii = sp2" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   i = sp2;; ii = sp3
B)   i = p;; ii = sp3
C)   i = p;; ii = sp3.
D)   i = p;; ii = sp2E) A) and D)
F) A) and C)

Question 13

The product of the following reaction would be 1-bromo-1-phenylethane.

Accepted Answer

A) True 
 B)False

Question 14

Consider the following structure. 
-If named as an annulene, the name would be [ __ ] annulene.

Accepted Answer

The answer of Consider the following structure. 
-If named as...

Question 15

Which of the following compounds is antiaromatic?

Accepted Answer

A)   ethane
B)   cyclobutadiene
C)   benzene
D)   cyclooctatetraeneE) None of the above
F) A) and B)

Question 16

What is the correct assignment of the names of the following substituted benzenes?

Accepted Answer

A)   1 = phenol; 2 = aniline; 3 = anisole
B)   1 = benzaldehyde; 2 = anisole; 3 = toluene
C)   1 = anisole; 2 = xylene; 3 = toluene
D)   1 = anisole; 2 = aniline; 3 = tolueneE) None of the above
F) All of the above

Question 17

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

Accepted Answer

A)   1
B)   2
C)   3
D)   4E) B) and C)
F) None of the above

Question 18

Which of the following ions is aromatic?

Accepted Answer

A)   1
B)   2
C)   3
D)   4E) A) and D)
F) A) and B)

Question 19

Which of the following has the compounds shown in the correct order of decreasing acidity (i.e., more acidic > less acidic) ?  less acidic) ?   A)  1 > 2 > 3 B)  2 > 3 > 1 C)  3 > 2 > 1 D)  1 > 3 > 2" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

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

Question 20

Which orbital contains the lone pair on the nitrogen atom of pyrrole?

Accepted Answer

A)   s
B)   p
C)   sp
D)   sp2E) All of the above
F) C) and D)

Exam 21: Benzene and the Concept of Aromaticity

Which of the following compounds is antiaromatic?

Correct AnswerverifiedShow Answer

Which of the following is not true about [the bridged [10]annulene shown below?

Correct AnswerverifiedShow Answer

Which orbital contains the lone pair on the nitrogen atom of pyrrole?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The following compound could be produced by reaction of phenol with bromobenzene.

Correct AnswerverifiedShow Answer

What is the correct assignment of the names of the following heterocycles?

Correct AnswerverifiedShow Answer

Which of the following has the compounds shown in the correct order of decreasing acidity (i.e., more acidic > less acidic) ?

Correct AnswerverifiedShow Answer

Consider the following structure. The 1H NMR spectrum of this compound −60°C shows a peak at 7.6 ppm, this would indicate aromaticity.

Correct AnswerverifiedShow Answer

Which of the following ions is aromatic?

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The product of the following reaction would be 1-bromo-1-phenylethane.

Correct AnswerverifiedShow Answer

What is the correct assignment of the names of the following substituted benzenes?

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Consider the following structure. -If named as an annulene, the name would be [ __ ] annulene.

Correct AnswerverifiedShow Answer

What is the approximate length of the carbon-carbon bonds in benzene?

Correct AnswerverifiedShow Answer

Which orbitals contain the lone pairs on the nitrogen atoms labeled i and ii in the imidazole ring?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following does not undergo oxidation in the presence of H2CrO4?

Correct AnswerverifiedShow Answer

The following compound should be name as 1-((1S, 3R)-3-methylcyclohexyl)benzene.

Correct AnswerverifiedShow Answer

What is the correct assignment of the names of the following fused arenes?

Correct AnswerverifiedShow Answer

List all of the requirements of a molecule for it to be considered aromatic.

Correct AnswerverifiedAn aromatic molecule has an un...View AnswerShow Answer

According to Hückel criteria, sulfathiazole is predicted to be ___________.

Correct AnswerverifiedShow Answer

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Consider the following structure. The ¹H NMR spectrum of this compound −60°C shows a peak at 7.6 ppm, this would indicate aromaticity.

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Which of the following does not undergo oxidation in the presence of H₂CrO₄?

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An aromatic molecule has an un...
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