Organic Chemistry I

Chem 334 - Fall 2011

Pre-Quiz 5

Professor Carl C. Wamser

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1. Which alkene below could NOT exist as cis/trans isomers?

a) 2-pentene

* b) 2-methyl-2-pentene

c) 3-methyl-2-pentene

d) 4-methyl-2-pentene

2. Dehydration of an alcohol requires what reaction conditions?

a) heat or light

* b) strong acid

c) strong base

d) an oxidizing agent

3. Dehydrohalogenation of an alkyl halide requires what reaction conditions?

a) heat or light

b) strong acid

* c) strong base

d) an oxidizing agent

4. The Zaitsev Rule would predict that dehydration of cis-2-methylcyclohexanol would give as the major product

* a) 1-methylcyclohexene

b) 2-methylcyclohexene

c) 3-methylcyclohexene

d) 4-methylcyclohexene

5. The most stable carbocation of formula C4H9+ is

a) n-butyl

b) isobutyl

c) sec-butyl

* d) tert-butyl