Question 1

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

Accepted Answer

A)   1 = phenol; 2 = m-cresol; 3 = toluene
B)   1 = m-cresol; 2 = resorcinol; 3 = m-xylene
C)   1 = anisole; 2 = catechol; 3 = m-xylene
D)   1 = m-cresol; 2 = anisole; 3 = cumeneE) None of the above
F) A) and B)

Question 2

Which of the following represents the energy levels of the molecular orbitals of cyclopentadienyl anion?

Accepted Answer

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

Question 3

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

Accepted Answer

A)   s
B)   p
C)   sp
D)   sp2E) A) and C)
F) B) and C) D

Question 4

How many p orbital electrons are present in furan?

Accepted Answer

A)   4
B)   6
C)   7
D)   8E) All of the above
F) B) and C)

Question 5

Which of the following statements is not true about the structure of benzene?

Accepted Answer

A)   six atomic 2p-orbitals overlap to form six π-molecular orbitals
B)   there are three bonding π-molecular orbitals and three π-antibonding molecular orbitals
C)   the ground state electronic configuration of benzene has six electrons in three π-bonding molecular orbitals
D)   the bonds alternate in length around the ringE) B) and C)
F) All of the above

Question 6

What is the IUPAC name of the following compound?

Accepted Answer

A)   2-nitro-6-carboxybromobenzene
B)   2-bromo-1-nitro-4-benzoic acid
C)   2-bromo-4-carboxynitrobenzene
D)   3-bromo-4-nitrobenzoic acidE) B) and D)
F) A) and B)

Question 7

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

Accepted Answer

A)   1 = styrene; 2 = benzaldehyde; 3 = cumene
B)   1 = anisole; 2 = benzaldehyde; 3 = toluene
C)   1 = styrene; 2 = xylene; 3 = toluene
D)   1 = aniline; 2 = phenol; 3 = cumeneE) All of the above
F) A) and B)

Question 8

The following compound is named (Z)-2,3-diphenyl-2-hexene.

Accepted Answer

A) True 
 B)False

Question 9

What is the best choice of reagent to achieve the following reaction? 2SO4 B)  NaOH, H2O C)  K2Cr2O7, H2SO4 D)  LiAlH4" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   H2SO4
B)   NaOH, H2O
C)   K2Cr2O7, H2SO4
D)   LiAlH4E) B) and D)
F) None of the above

Question 10

What is the hybridization of the nitrogen atom of pyridine?

Accepted Answer

A)   s
B)   sp
C)   sp2
D)   sp3E) A) and B)
F) B) and C)

Question 11

The product of the following reaction would be a dicarboxylic acid.

Accepted Answer

A) True 
 B)False

Question 12

Using the Hückel criteria, the compound would be ______________.

Accepted Answer

The answer of Using the Hückel criteria, the compound would...

Question 13

Provide a brief explanation of why furan (below) is aromatic. Your answer should identify the hybridization of the oxygen atom and account for which electrons are in the pi system.

Accepted Answer

The oxygen is sp² hybridized. One lone pa...

Question 14

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 C)

Question 15

Which of the following compound is nonaromatic?

Accepted Answer

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

Question 16

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) A) and B)

Question 17

Identify the most acidic compound.

Accepted Answer

A)  
B)  
C)  
D)  E) B) and C)
F) B) and D)

Question 18

What is the intermediate in the reaction of ethylbenzene with NBS in the presence of benzoyl peroxide to give 1-bromo-1-phenylethane?

Accepted Answer

A)   Benzylic anion
B)   Benzylic cation
C)   Benzylic radical
D)   Benzylic carbeneE) All of the above
F) A) and B) C

Question 19

Which of the following is not true about cyclooctatetraene?

Accepted Answer

A)   The planar conformation is antiaromatic
B)   In the planar conformation there are two electrons in degenerate nonbonding pi orbitals.
C)   In the tub conformation the pi system is not conjugated
D)   The tub conformation is aromaticE) A) and D)
F) A) and B) D

Question 20

Which of the following represents the energy levels of the molecular orbitals of cyclobutadiene?

Accepted Answer

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

Exam 21: Benzene and the Concept of Aromaticity

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

Correct AnswerverifiedShow Answer

Which of the following represents the energy levels of the molecular orbitals of cyclopentadienyl anion?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedD

How many p orbital electrons are present in furan?

Correct AnswerverifiedShow Answer

Which of the following statements is not true about the structure of benzene?

Correct AnswerverifiedShow Answer

What is the IUPAC name of the following compound?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The following compound is named (Z)-2,3-diphenyl-2-hexene.

Correct AnswerverifiedShow Answer

What is the best choice of reagent to achieve the following reaction?

Correct AnswerverifiedShow Answer

What is the hybridization of the nitrogen atom of pyridine?

Correct AnswerverifiedShow Answer

The product of the following reaction would be a dicarboxylic acid.

Correct AnswerverifiedShow Answer

Using the Hückel criteria, the compound would be ______________.

Correct AnswerverifiedShow Answer

Provide a brief explanation of why furan (below) is aromatic. Your answer should identify the hybridization of the oxygen atom and account for which electrons are in the pi system.

Correct AnswerverifiedThe oxygen is sp2 hybridized. One lone pa...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following compound is nonaromatic?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Identify the most acidic compound.

Correct AnswerverifiedShow Answer

What is the intermediate in the reaction of ethylbenzene with NBS in the presence of benzoyl peroxide to give 1-bromo-1-phenylethane?

Correct AnswerverifiedC

Which of the following is not true about cyclooctatetraene?

Correct AnswerverifiedD

Which of the following represents the energy levels of the molecular orbitals of cyclobutadiene?

Correct AnswerverifiedShow Answer

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The oxygen is sp² hybridized. One lone pa...
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C

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