Question 1

What is the IUPAC name of the following compound?

Accepted Answer

A)  3,6-Dichloroaniline
B)  2,5-Dichloroaniline
C)  2,5-Dichloroaminobenzene
D)  2,5-DichloroanisoleE) A) and D)
F) B) and C)

Question 2

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

Accepted Answer

A)  Benzene is planar.
B)  Benzene has three short double bonds alternating with three longer single bonds.
C)  The electrons in the pi bonds are delocalized around the ring.
D)  Benzene has six pi electrons.E) B) and C)
F) None of the above

Question 3

What is the IUPAC name of the following compound?

Accepted Answer

A)  1-Chloro-4-ethyl-3-propylbenzene
B)  1-Chloro-4-ethyl-5-propylbenzene
C)  4-Chloro-1-ethyl-2-propylbenzene
D)  4-Chloro-2-propyltolueneE) None of the above
F) B) and D)

Question 4

Which of the following is not a criterion for antiaromaticity?

Accepted Answer

A)  The molecule must be cyclic.
B)  The molecule must have (4n + 2)  pi electrons.
C)  The molecule must be planar.
D)  The molecule must be completely conjugated.E) A) and B)
F) C) and D)

Question 5

Rank the following compounds in order of decreasing acidity, starting with the most acidic.  II > III B) III > II > I C) III > I > II D) I > III > II" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  I > II > III
B)  III > II > I
C)  III > I > II
D)  I > III > IIE) A) and C)
F) All of the above B

Question 6

What is the structure of a compound of molecular formula C10H14O2 that shows a strong IR absorption at 3150 ¾2850 cm-1 and gives the following 1H NMR absorptions: 1.4 (triplet, 6H) ; 4.0 (quartet, 4H) ; and 6.8 (singlet, 4H)  ppm?
 What is the structure of a compound of molecular formula C10H14O2 that shows a strong IR absorption at 3150 ¾2850 cm-1 and gives the following 1H NMR absorptions: 1.4 (triplet, 6H) ; 4.0 (quartet, 4H) ; and 6.8 (singlet, 4H)  ppm?   A) I B) II C) III D) IV" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) A) and C)
F) None of the above

Question 7

What is the name of the following compound?

Accepted Answer

A)  2,6-Dimethylbenzene
B)  5-Methyltoluene
C)  Anisole
D)  1,3-DimethylbenzeneE) A) and C)
F) A) and D) D

Question 8

What orbitals are used to form the indicated bond?
3 B) sp2 C) p D) sp3 and sp2" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  sp3
B)  sp2
C)  p
D)  sp3 and sp2E) A) and B)
F) B) and D)

Question 9

Which of the following compounds is aromatic?

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) None of the above
F) All of the above

Question 10

How many 13CNMR signals does the following compound exhibit?
13CNMR signals does the following compound exhibit?   A) 4 B) 5 C) 6 D) 8" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  4
B)  5
C)  6
D)  8E) A) and B)
F) A) and C)

Question 11

What is the correct structure for toluene?

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) A) and C)
F) A) and B)

Question 12

What is the correct structure for aniline?

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) C) and D)
F) A) and D)

Question 13

What is the correct assignment of the number of signals in the 13C NMR spectra of the following disubstituted benzene derivatives?
13C NMR spectra of the following disubstituted benzene derivatives?   A) I = 3 signals; II = 3 signals; III = 2 signals. B) I = 3 signals; II = 4 signals; III = 2 signals. C) I = 6 signals; II = 6 signals; III = 6 signals. D) I = 3 signals; II = 4 signals; III = 3 signals." class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  I = 3 signals; II = 3 signals; III = 2 signals.
B)  I = 3 signals; II = 4 signals; III = 2 signals.
C)  I = 6 signals; II = 6 signals; III = 6 signals.
D)  I = 3 signals; II = 4 signals; III = 3 signals.E) A) and C)
F) B) and C)

Question 14

Which of the following ions is aromatic?

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) A) and D)
F) B) and C) A

Question 15

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

Accepted Answer

A)  I = pyridine; II = pyrimidine; III = furan.
B)  I = pyrimidine; II =pyrrole; III = furan.
C)  I = pyridine; II = pyrrole; III = furan.
D)  I = pyrimidine; II = pyrrole; III = tetrahydrofuran.E) C) and D)
F) None of the above

Question 16

What is the name of the following compound?

Accepted Answer

A)  Meta-bromophenol
B)  Para-hydroxybenzene
C)  3-bromoanisole
D)  6-methoxy-2-bromobenzeneE) A) and B)
F) A) and C)

Question 17

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

Accepted Answer

A)  I = Phenol; II = anisole; III = toluene.
B)  I = Benzaldehyde; II = phenol; III = anisole.
C)  I = Benzaldehyde; II = phenol; III = toluene.
D)  I = Phenol; II = anisole; III = styrene.E) B) and D)
F) A) and D)

Question 18

Why is the following compound not aromatic?

Accepted Answer

A)  It has 4n pi electrons.
B)  It is not cyclic.
C)  It has 4n+2 pi electrons.
D)  The p electron system is not continuous.E) C) and D)
F) All of the above

Question 19

Which of the following compounds is aromatic?

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) None of the above
F) C) and D)

Question 20

Which of the following compounds is not aromatic?

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) A) and D)
F) A) and C)

Exam 17: Benzene and Aromatic Compounds

What is the IUPAC name of the following compound?

Correct AnswerverifiedShow Answer

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

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What is the IUPAC name of the following compound?

Correct AnswerverifiedShow Answer

Which of the following is not a criterion for antiaromaticity?

Correct AnswerverifiedShow Answer

Rank the following compounds in order of decreasing acidity, starting with the most acidic.

Correct AnswerverifiedB

What is the structure of a compound of molecular formula C10H14O2 that shows a strong IR absorption at 3150 ¾2850 cm-1 and gives the following 1H NMR absorptions: 1.4 (triplet, 6H) ; 4.0 (quartet, 4H) ; and 6.8 (singlet, 4H) ppm?

Correct AnswerverifiedShow Answer

What is the name of the following compound?

Correct AnswerverifiedD

What orbitals are used to form the indicated bond?

Correct AnswerverifiedShow Answer

Which of the following compounds is aromatic?

Correct AnswerverifiedShow Answer

How many 13CNMR signals does the following compound exhibit?

Correct AnswerverifiedShow Answer

What is the correct structure for toluene?

Correct AnswerverifiedShow Answer

What is the correct structure for aniline?

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What is the correct assignment of the number of signals in the 13C NMR spectra of the following disubstituted benzene derivatives?

Correct AnswerverifiedShow Answer

Which of the following ions is aromatic?

Correct AnswerverifiedA

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

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What is the name of the following compound?

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

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Why is the following compound not aromatic?

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Which of the following compounds is aromatic?

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Which of the following compounds is not aromatic?

Correct AnswerverifiedShow Answer

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B

What is the structure of a compound of molecular formula C₁₀H₁₄O₂ that shows a strong IR absorption at 3150 ¾2850 cm^-1 and gives the following ¹H NMR absorptions: 1.4 (triplet, 6H) ; 4.0 (quartet, 4H) ; and 6.8 (singlet, 4H) ppm?

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D

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How many ¹³CNMR signals does the following compound exhibit?

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What is the correct assignment of the number of signals in the ¹³C NMR spectra of the following disubstituted benzene derivatives?

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A

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