Organic Chemistry I

Chem 334 - Fall 2009

Pre-Quiz 5

Professor Carl C. Wamser

You must log on to Blackboard to submit your answers.

Your answers must be submitted before 8:30 am, Mon, Oct 26

1. The H-C-H bond angle in ethylene is

a. exactly 120°
b. greater than 120°
* c. less than 120°

2. The compound below that could NOT have cis-trans isomers is

a. 2-octene
b. 3-octene
c. 4-octene
* d. 2-methyl-2-octene
e. 2-methyl-3-octene

3. An example of a trisubstituted alkene is

a. 2-octene
b. 3-octene
c. 4-octene
* d. 2-methyl-2-octene
e. 2-methyl-3-octene

4. The carbocation below that is most likely to rearrange is

a. tert-butyl cation
b. sec-butyl cation
* c. isobutyl cation

5. According to the Zaitsev Rule, the major dehydration product from 2-methylcyclohexanol will be

* a. 1-methylcyclohexene
b. 2-methylcyclohexene
c. 3-methylyclohexene
d. 4-methylcyclohexene
e. methylenecyclohexane