CHEM 120 WEEK 17 PRACTICE QUESTIONS AND ANSWERS.| LATEST 2021:Chamberlain College of Nursing (100% SATISFACTIONS)

1. Question No. : (TCO 12) Celluloid is a chemical modification of which natural product?

Student Ans:
Cells

Ivory

Cellophane

Cellulose

None of the above
Inst. Exp: Chapter 10

Pts. Received: 2 of 2
Comnts::




2. Question No. : (TCO 12) Low-density polyethylene is composed of

Student Ans:
primarily linear, unbranched chains of polyethylene in a close
packing arrangement.

primarily highly branched, nonlinear chains of polyethylene in a
diffuse packing arrangement.

a mixture of polyethylene & polystyrene.

a mixture of polyethylene & polyester.

polyethylene with high density plasticizers added to increase
density.
Inst. Exp: Chapter 10

Pts. Received: 0 of 2
Comnts::




3. Question No. : (TCO 12) The pendant group in polystyrene is a(n):

Student Ans:
benzene ring.

chorine atom.

bromine atom.

, ethyl group.

methyl group.
Inst. Exp: Chapter 10

Pts. Received: 2 of 2
Comnts::




4. Question No. : (TCO 12) Which of the following statements about crystalline &
amorphous polymers is correct?

Student Ans:
Crystalline polymers tend to be stronger, while amorphous
polymers tend to have greater elasticity.

Crystalline polymers tend to have greater elasticity, while
amorphous polymers tend to be stronger.

Both crystalline & amorphous polymers are strong but have little
elasticity.

Both crystalline & amorphous polymers have great elasticity but
have little strength.

None of the above.
Inst. Exp: Chapter 10

Pts. Received: 2 of 2
Comnts::




5. Question No. : (TCO 12) The monomer used to make Teflon is

Student Ans:
H2C=CH2.

Cl2C=CH2.

H2C=CHCl.

F2C=CF2.

F2C=CHF.
Inst. Exp: Chapter 10

Pts. Received: 2 of 2