Organic Chemistry II
	Professor Carl C. Wamser
Chem 335 - Winter Term	Pre-Quiz 12

(must be done in D2L before Tues., Jan. 22, 7:30 am)

1. Addition of an electrophile to benzene gives a delocalized carbocation with how many resonance forms?

a) 1

b) 2

* c) 3

d) more than 3

2. Which substituent is an activating, ortho,para-director

a) Cl

* b) OCH3

c) H

d) CN

3. Which compound will react fastest in a Friedel-Crafts alkylation?

a) benzene

b) benzoic acid

c) nitrobenzene

* d) toluene

4. The compound below that will be most reactive in a nucleophilic aromatic substitution is

* a) p-fluoronitrobenzene

b) p-chloronitrobenzene

c) p-bromonitrobenzene

d) p-iodonitrobenzene

5. If benzene is treated first with CH3Cl + AlCl3, and then with HNO3 + H2SO4, the major product is expected to be

a) m-nitrotoluene

* b) p-nitrotoluene

c) m-nitrobenzoic acid

d) p-nitrobenzoic acid