Organic Chemistry I |
Pre-Quiz 7 |
Professor Carl C. Wamser |
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1. The only compound in the list below that has a chirality center is
a. 2-methylpentane
b. 3-methylpentane
c. 2-methylhexane
* d. 3-methylhexane
e. methylcyclohexane
2. (R,R)-1,2-dimethylcyclohexane would be
a. cis
* b. trans
c. can't tell
3. When HI adds to 1-pentene, the 2-iodopentane product will be
a. all (R)
b. all (S)
c. achiral
* d. racemic
e. can't tell
4. If optically pure (S)-2-butanol has a specific rotation of +13.5°, then a sample of 50% optically pure (S)-2-butanol would be expected to have a specific rotation of
a. -6.75°
* b. +6.75°
c. -13.5°
d. -27°
e. 0°
5. An example of a meso compound is
* a. cis-1,2-dichlorocyclobutane
b. trans-1,2-dichlorocyclobutane
c. cis-1,3-dichlorocyclobutane
d. trans-1,3-dichlorocyclobutane
e. none of the above