7. When asymmetric alkenes polymerize (such as chloroethene to produce PVC), the pendant group like chlorine can be arranged in different ways. An arrangement in which the -Cl groups are arranged on the same side of the polymer chain is called a(n) . a. Atactic arrangement. b. Isotactic c. Syndiotactic d. Sporadic

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Chapter21: Organic And Biological Molecules
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7. When asymmetric alkenes polymerize (such as chloroethene to produce PVC), the pendant group like
chlorine can be arranged in different ways. An arrangement in which the -Cl groups are arranged on
the same side of the polymer chain is called a(n) ,
a. Atactic
b. Isotactic
arrangement.
c. Syndiotactic
d. Sporadic
8. Kevlar is a type of polymer which has a great resistance to tear. Its application includes its use in making
bulletproof vests and radial tires. The two monomers used to make Kevlar are the following:
H
H
H-O-
c-0-H
H-N-
-N-H
Monomer One
Monomer Two
When these two monomers join
a. A molecule of CO2 will be eliminated and an ester linkage will form
b. Nothing will be eliminated and the two monomers will be linked through a hydrogen to hydrogen
bond
c. A water molecule will be eliminated and a peptide linkage will be formed
d. Nothing will be eliminated. The two monomers will be linked by a carbon-carbon bond.
Transcribed Image Text:7. When asymmetric alkenes polymerize (such as chloroethene to produce PVC), the pendant group like chlorine can be arranged in different ways. An arrangement in which the -Cl groups are arranged on the same side of the polymer chain is called a(n) , a. Atactic b. Isotactic arrangement. c. Syndiotactic d. Sporadic 8. Kevlar is a type of polymer which has a great resistance to tear. Its application includes its use in making bulletproof vests and radial tires. The two monomers used to make Kevlar are the following: H H H-O- c-0-H H-N- -N-H Monomer One Monomer Two When these two monomers join a. A molecule of CO2 will be eliminated and an ester linkage will form b. Nothing will be eliminated and the two monomers will be linked through a hydrogen to hydrogen bond c. A water molecule will be eliminated and a peptide linkage will be formed d. Nothing will be eliminated. The two monomers will be linked by a carbon-carbon bond.
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