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WorksheetsPolymer 1 2nd9Weeks Exam Review
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
What type of polymer forms when several thousand mers are added one after another to form a long chain polymer?
a)
linear
b)
long
c)
parallel
d)
multi
2.
Which of the following is another application for ultra high molecular weight polyethylene (UHMWPE)?
a)
milk jugs
b)
food trays
c)
soda bottles
d)
bearing that lets a large crane rotate
3.
What type of polymer has a structure similar to a tree?
a)
linear
b)
branched
c)
cross linked
d)
trucked
4.
Which of the following is a thermoplastic polymer whose mer is vinyl chloride?
a)
polypropylene
b)
polypropylene chloride
c)
polyvinyl chloride
d)
thermo chloride
5.
Which of the following is the name of the polymer with a-CH3 added to vinyl?
a)
polyvinyl chloride
b)
polystyrene
c)
polypropylene
d)
polyacrylonitrile
6.
Polystyrene has much less brittleness than either polyethylene or polypropylene
a)
true
b)
false
7.
How does PVC become more tightly attracted to atoms in adjacent molecules?
a)
chlorine has a slighly negative charge
b)
chlorine is a small element
c)
chlorine has a slightly positive charge
d)
chlorine is a large element
8.
How does the large benzyl group in styrene affect the polymer?
a)
large molecules become less intertwined
b)
small molecules become more intertwined
c)
small molecules become less intertwined
d)
large molecules become more intertwined
9.
The size and type of the side group affects what property of the polymer?
a)
physical property
b)
crystalline property
c)
chemical property
d)
all of these
10.
When is the orientation of the mers an important factor?
a)
non linear with some branching
b)
non lniear with no branching
c)
linear with no branching
d)
linear with some branching
11.
How is the orientation of the side groups controlled?
a)
by heat
b)
by catalysts
c)
by pressure
d)
by initiators
12.
What type of polymer has the randomness of the molecules increased?
a)
linear
b)
branched
c)
amorphous
d)
crystalline
13.
What is the process of forming a fairly long chain or extension along the main chain or backbone of the polymer?
a)
elongation
b)
branching
c)
splitting
d)
cracking
e)
s
14.
Which of the following is a side group in polymers with all of the side groups alternating in a regular pattern?
a)
syndiotactic
b)
isotactic
c)
paroatactic
d)
atactic
15.
What happens when PVC becomes more tightly attracted in adjacent molecules?
a)
polymer becomes less rigid
b)
polymer becomes longer
c)
polymer becomes shorter
d)
polymer becomes more rigid
16.
Which of the following is a trade name for a type of bulletproof fabric made of polyethylene?
a)
rayon
b)
spectra
c)
Gore Tex
d)
nylon
17.
Which of the following is a trade name for a wrapping material made of polyethylene?
a)
Happy Wrap
b)
Tight Wrap
c)
Aluminum Wrap
d)
Glad Wrap
18.
Which of the following is the name of the polymer with a-CN added to vinyl?
a)
polyvinyl chloride
b)
polypropylene
c)
polystyrene
d)
polyacrylonitrile
19.
What type of polymer has the formation of bonds from one polymer to
another polymer?
another polymer?
a)
linear
b)
branched
c)
cross linked
d)
trunked
20.
Which of the following is not a form or application of polyethylene?
a)
milk jug
b)
food tray
c)
plastic grocery bag
d)
bulletproof vest
21.
Which of the following is the amount of material in a given volume?
a)
specific gravity
b)
porosity
c)
specific density
d)
density
22.
Which of the following is a side group in polymers with all of the side groups
aligned on the same side?
aligned on the same side?
a)
isotactic
b)
syndiotactic
c)
paroatactic
d)
atactic
23.
What characteristic of polymers is affected by transparency?
a)
melt ability
b)
crytallinity
c)
hardness
d)
density
24.
HDPE has a higher density than LDPE.
a)
true
b)
false
25.
Which of the following is not a characteristic factor that influences polymers?
a)
addition of condensation
b)
type/shape of mer
c)
low molecular weight
d)
arrangement of mer
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