Organic Chemistry III |
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Professor Carl C. Wamser |
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Chem 336 - Spring Term |
Pre-Quiz 25 |
(must be done in Blackboard before Fri., April 30, 8:30 am)
1. 1,3-Dihydroxypropanone would be classified as
a. an aldotriose
* b. a ketotriose
c. an aldotetrose
d. a ketotetrose
e. none of the above
2. The C-3 epimer of D-glucose is
* a. D-allose
b. D-altrose
c. D-mannose
d. D-fructose
e. L-glucose
3. Beta-D-ribofuranose is the form of ribose in RNA. The O atom in the ring joins carbons numbered
a. 1 and 3
* b. 1 and 4
c. 1 and 5
d. 2 and 5
e. 2 and 6
4. Tartaric acid could be obtained by nitric acid oxidation of what simple sugar?
a. glyceraldehyde
* b. erythrose
c. arabinose
d. glucose
e. sucrose
5. Lactose is a disaccharide made by joining together
a. glucose and fructose
b. 2 glucose units
c. fructose and galactose
* d. glucose and galactose
e. glucose and ribose