Chem 336 - Spring 1999 - Organic Chemistry III
Portland State University - Dr. Carl C. Wamser

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Chapter 24 Pre-Quiz

(1 point each)

1. An example of an aldohexose would be

a) glyceraldehyde

b) glucose

c) fructose

d) sucrose

2. The anomeric carbon of D-fructose is carbon number

a) 1

b) 2

c) 3

d) 4

e) 5

f) 6

3. The acetal linkage between glucose units in a polymer of cellulose joins carbons number

a) 1 and 1'

b) 1 and 2'

c) 1 and 4'

d) 2 and 2'

e) 2 and 4'

f) 4 and 4'

4. Because of the interconversion with an enol form, it would be expected that vitamin C should easily lose stereochemistry at carbon number

a) 1

b) 2

c) 3

d) 4

e) 1 and 3

f) 1, 3, and 4

5. In its most stable chair form, beta-D-mannose would have how many equatorial substituents?

a) 0

b) 1

c) 2

d) 3

e) 4

f) 5

g) 6