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1

Arenes react by?
A)nucleophilic substitution.
B)nucleophilic addition.
C)electrophilic substitution.
D)electrophilic addition.
E)all of the above.
2

The resonance energy of benzene is?
A)lost in the arenium cation.
B)more is gained in the arenium cation.
C)there is no effect on the resonance energy.
3

The electrophile in a reaction with an arene is a?
A)Bronsted-Lowry acid.
B)Bronsted-Lowry base.
C)Lewis acid.
D)Lewis base.
E)an amphoteric species.
4

The electrophile in the nitration of an arene is?
A)an ammonia molecule.
B)an ammonium cation.
C)nitric acid.
D)sulfuric acid.
E)a nitronium ion.
5

The best reagent to produce benzenesulfonic acid is?
A)HNO3 in H2SO4
B)H2SO4
C)SO3 in H2SO4
D)SO2 in H2SO4
E)SO3 in HNO3
6

The halogenation of arenes differs from alkenes in that?
A)Lewis acid catalysts are required
B)Lewis base catalysts are required
C)AlCl3 is required
D)sulfuric acid is required
E)nitric acid is required
7

A Friedel-Crafts alkylation uses an alkyl halide to add an alkyl group to an aromatic ring. What other reagents can be used to achieve the same results?
A)an alkyl halide and AlCl3.
B)an alkane and strong base.
C)an alkyne and a strong base.
D)an alkene and sulfuric acid.
E)an alkene and HCl.
8

A substituent on an aromatic ring will do all of the following except?
A)affect the amount of resonance stabilization energy.
B)direct the location of a subsequent electrophile substitution reaction on the ring.
C)affect the rate of reaction.
D)affect the rate by stabilizing or destabilizing the carbocation intermediate.
E)affect the location of the next reaction by stabilizing or destabilizing the carbocation intermediate.
9

Meta directors are?
A)electron donating and deactivating.
B)electron withdrawing and deactivating.
C)electron donating and activating.
D)electron withdrawing and activating.
10

In general, ortho - para directors are?
A)electron donating and deactivating.
B)electron withdrawing and deactivating.
C)electron donating and activating.
D)electron withdrawing and activating.
11

When multiple substituents are present on an aromatic ring which of the following statements is false?
A)the directing effects are cumulative.
B)the more activating group will control the regiochemistry in the case of conflicting directing effects.
C)the less sterically hindered site is preferr
D)the stabilization of the intermediate carbocation has no effect on the directing effects.
12

A di-chlorobenzene can be alkylated using a Friedel-Craft reaction?
A)True.
B)False.
13

The order of a series of reactions on benzene to produce a multiple substituted aromatic compound is important?
A)True.
B)False.
14

Polycyclic aromatic compounds are?
A)more reactive than benzene.
B)have the same reactivity as benzene.
C)are less reactive than benzene.
15

Hetero-cyclic aromatic compounds with five membered rings are less reactive as benzene?
A)True.
B)False.





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