Chem 334 - Fall 2001
Organic Chemistry I
Dr. Carl C. Wamser
In order to do this pre-quiz, you must log in to the class WebCT site.
This pre-quiz must be submitted via WebCT before Friday morning, October 5, 8:30 am.
1. Converting from a staggered to an eclipsed conformation of ethane requires
1) rotating the C-H bond
*2) rotating the C-C bond
3) changing the H-C-H bond angle
4) changing the C-C-H bond angle
5) some other molecular change
2. The most stable conformation of butane is called
1) staggered
2) eclipsed
3) gauche
*4) anti
5) axial
6) equatorial
3. Cis- and trans-1,2-dimethylcyclohexane are
1) conformational isomers
2) constitutional isomers
*3) stereoisomers
4) not isomers
4. The best conformation of cyclohexane is usually described as
1) axial
2) equatorial
*3) chair
4) boat
5) none of the above
5. The definition of a heterocyclic compound is a cyclic compound with
1) multiple stable conformations
2) at least one multiple bond
3) at least one atom other than carbon
*4) at least one atom other than carbon in the ring
5) at least one substituent on the ring