Chem 336 - Spring 2000
Organic Chemistry III
Dr. Carl C. Wamser

Chapter 25 Pre-Quiz

1. The major constituent of beeswax has the molecular formula

a) C44 H88 O2

b) C45 H90 O2

c) C46 H88 O2

d) C46 H92 O2

e) C48 H96 O2

2. The double bond in oleic acid is between carbons

a) 7-8

b) 6-7

c) 8-9

d) 9-10

e) some other carbons

3. The carbon in linoleic acid that is doubly allylic is

a) C-9

b) C-10

c) C-11

d) C-12

e) some other carbon

4. Arachidonic acid is the precursor to

a) steroids

b) prostaglandins

c) phospholipids

d) vitamin K

e) none of the above

5. At pH 7, the net charge on a lecithin phospholipid is expected to be about

a) 0

b) -1

c) -2

d) +1

e) +2