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

Chapter 23 Pre-Quiz

1. Which common polymer is made from the raw materials 43% petroleum and 57% rock salt?

a) HDPE

b) PETE

c) polystyrene

d) PVC

e) nylon

2. A sample of polyethylene with degree of polymerization 100 would have an average molecular weight of about

a) 100

b) 1,400

c) 2,800

d) 14,000

e) 28,000

3. Identify the monomer (IUPAC name) that would be needed to make the polymer -(CH=CH)n-

ethyne

4. Acid-catalyzed complete hydrolysis of PET will give

a) a diol and a diacid

b) a diester and a diacid

c) a diol and a diester

d) a hydroxyacid

e) none of the above

5. The stereochemistry of the stereocenters of the isotactic polymer shown in Figure 23.6 (page 931) is

a) all R

b) all S

c) can't tell

d) there are no stereocenters