Deck 14: Aromatic Compounds

Question 1

What is the correct name for the following?

A) o-nitrophenone
B) p-hydroxynitrobenzene
C) 3-nitroacetophenone
D) m-nitrophenol

Answer 1

m-nitrophenol

Question 2

What is the correct name for the following?

A) o-bromoaniline
B) 2-bromoaniline
C) 1-amino-2-bromobenzene
D) all of the above

Answer 2

all of the above

Question 3

To be aromatic, a compound must be ___ , ___ , contain alternating double and single bonds and have
A(n) ___ of electrons.

A) noncyclic, coplanar, even number
B) cyclic, symmetric, odd number
C) cyclic, planar, Huckel
D) cyclic, aliphatic, Huckel

Answer 3

cyclic, planar, Huckel

Question 4

___ is the general name for all monocyclic structures that contain alternating double and single bonds.

A) Annulenes
B) Cumulenes
C) Aromatics
D) Antiaromatics

Question 5

A new monocyclic ring is formed. The pi-electron energy of the ring is calculated and found to be 25 kJ/mole lower than the pi-electron energy of the corresponding open chain form of the ring with the same number of carbons and double bonds.

A) aromatic
B) antiaromatic
C) nonaromatic

Question 6

A new monocyclic ring is formed. The pi-electron energy of the ring is calculated and found to be the exact same as the pi-electron energy of the corresponding open chain form of the ring with the same number of carbons and double bonds.

A) aromatic
B) antiaromatic
C) nonaromatic

Question 7

Which of the following are aromatic?

A) I
B) II
C) III
D) I and II
E) II and III
F) I and III
G) none of the above
H) all of the above

Question 8

Which of the following are aromatic?

A) I
B) II
C) III
D) I and II
E) II and III
F) I and III
G) none of the above
H) all of the above

Question 9

In NMR, aromatic hydogens resonate at ___ ppm while carbons resonate at ___ ppm. In IR spectroscopy, aromatic hydrogens absorb at ___ cm^-1.

A) 3-4, 100-170, 1450-1600
B) 6-9.5, 100-170, 3030
C) 3-4, 100-170, 2250
D) 6-9.5, 100-170, 1450-1600

Question 10

Which of the following represents the two major fragments that are seen when monoalkylbenzenes fragment in a Mass Spectrometer?

A) I and II
B) I and III
C) I and IV
D) II and III
E) III and IV
F) II and IV