Organic Chemistry III
	Professor Carl C. Wamser
	Chapter 25 Pre-Quiz	Chem 336 - Spring 2005

(must be done in WebCT before Fri., May 6, 8:30 am)

1. Arabinose is an example of

a. an aldotetrose  
* b. an aldopentose  
c. an aldohexose  
d. a ketopentose  
e. a ketohexose

2. Which of the following is NOT a disaccharide?

a. cellobiose  
b. lactose  
c. maltose  
* d. galactose  
e. sucrose

3. How many equivalents of periodic acid would be needed to completely cleave glucose into one-carbon fragments?

a. 1  
b. 2  
c. 3  
d. 4  
* e. 5  
f. 6  
g. more than 6

4. Deoxyribose (as found in DNA) is ribose missing an oxygen on which carbon?

a. 1  
* b. 2  
c. 3  
d. 4  
e. 5

5. The number of stereocenters in sucrose is

a. 2  
b. 3  
c. 4  
d. 5  
e. 6  
f. 7  
g. 8  
* h. 9  
i. more than 9