Organic Chemistry III |
||
Professor Carl C. Wamser |
||
Chem 336 - Spring 2008 |
Pre-Quiz 25 |
(must be done in Blackboard before Fri., May 2, 8:30 am)
1. The compound identified by Emil Fischer as D-glyceraldehyde could also be identified as
* a. (R) or (+) or (d)
b. (S) or (+) or (d)
c. (R) or (-) or (d)
d. (S) or (-) or (d)
e. racemic
2. L-Xylulose is an example of
a. an aldohexose
b. an aldopentose
c. a ketohexose
* d. a ketopentose
e. a ketotetrose
3. The anomeric carbon of D-glucopyranose is
* a. C-1
b. C-2
c. C-3
d. C-4
e. C-5
f. C-6
4. Sodium borohydride reduction of glucose gives
a. glucaric acid
b. gluconic acid
* c. sorbitol
d. sucrose
e. high-fructose corn syrup
5. The connections between individual D-glucose units in cellulose are described as
a. alpha(1,4)
* b. beta(1,4)
c. alpha(1,6)
d. beta(1,6)