Organic Chemistry II
	Professor Carl C. Wamser
Chem 335 - Winter Term	Pre-Quiz 11

(must be done in D2L before Tues., Jan. 14, 7:30 am)

1. How many isomeric tribromobenzenes are there?

a) 2

* b) 3

c) 4

d) more than 4

2. Which of the following is NOT true about benzene?

a) All C-C-C bond angles are 120°

* b) C-C bonds rapidly alternate between single and double bonds

c) all hydrogens are equivalent

d) all the pi bonds are conjugated

3. The compound below that would react most quickly with NBS is

a) toluene

b) ethylbenzene

* c) isopropybenzene

d) tert-butylbenzene

4. In the Birch reduction, benzene gets reduced to 1,4- cyclohexadiene. What gets oxidized?

a) CH3OH

b) NH3

c) NaNH2

* d) Na

5. Which of the following has a pi bond conjugated with the aromatic ring?

a) p-benzyltoluene

* b) 2-phenyl-1-octene

c) 3-phenylcyclohexene

d) 3-phenyl-1,4-pentadiene