Organic Chemistry II
	Professor Carl C. Wamser
Chem 335 - Winter Term	Pre-Quiz 10

(must be done in D2L before Thur., Jan. 9, 7:30 am)

1. Which compound below is an allylic alcohol?

a) (E)-but-1-en-1-ol

* b) (Z)-but-2-en-1-ol

c) (E)-but-2-en-2-ol

d) (Z)-but-2-en-2-ol

2. Which compound is a vinylic halide?

a) 1-bromopentane

* b) (Z)-1-bromo-1-pentene

c) (Z)-1-bromo-2-pentene

d) (Z)-5-bromo-2-pentene

3. The reaction of NBS with cyclopentene is an example of

a) electrophilic addition

b) electrophilic substitution

c) nucleophilic substitution

* d) free radical substitution

4. Which compound will have the lowest heat of hydrogenation?

a) 1,5-hexadiene

b) (E)-1,4-hexadiene

c) 3,4-hexadiene

* d) (E,E)-2,4-hexadiene

5. What stereoisomers are possible for 3,4-heptadiene?

* a) a pair of enantiomers

b) (E) and (Z) stereoisomers

c) (E,E) , (E,Z) , and (Z,Z) stereoisomers

d) none