Question 1

Which of the following statements about ethylene and polyethylene is true?

Accepted Answer

A) The polymer has the same properties as the monomer. 
B) The polymer has alternating double and single bonds between carbons, while the monomer has only single bonds between carbons. 
C) The polymer has alternating double and single bonds between carbons, while the monomer has only double bonds between carbons. 
D) The polymer has only single bonds between carbons, while the monomer has only double bonds between carbons. 
A) The polymer has the same properties as the monomer. 
B) The polymer has alternating double and single bonds between carbons, while the monomer has only single bonds between carbons. 
C) The polymer has alternating double and single bonds between carbons, while the monomer has only double bonds between carbons. 
D) The polymer has only single bonds between carbons, while the monomer has only double bonds between carbons. D

Question 2

This formula in which n can be a very large number represents which of the following polymers?

Accepted Answer

A) polyethylene 
B) polyvinyl chloride 
C) polypropylene 
D) teflon 
A) polyethylene 
B) polyvinyl chloride 
C) polypropylene 
D) teflon A

Question 3

Amorphous polymers tend to have great strength and rigidity while crystalline polymers tend to have greater elasticity.

Accepted Answer

A) True 
 B)False  False

Question 4

Plasticizers,such as biphenyls,are very soluble in water.

Accepted Answer

A) True 
 B)False

Question 5

Polyvinyl acetate is used for

Accepted Answer

A) carpet. 
B) chewing gum resin. 
C) yarns. 
D) floor tile. 
A) carpet. 
B) chewing gum resin. 
C) yarns. 
D) floor tile.

Question 6

The pendant group in polypropylene is a(n)

Accepted Answer

A) benzene ring. 
B) chlorine atom. 
C) ethyl group. 
D) methyl group. 
A) benzene ring. 
B) chlorine atom. 
C) ethyl group. 
D) methyl group.

Question 7

Polychlorinated biphenyls (PCBs)are no longer used as plasticizers because they are considered to be an environmental hazard.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following is a copolymer?

Accepted Answer

A) celluloid 
B) cellulose 
C) linear low-density polyethylene 
D) carbon nanotubes 
A) celluloid 
B) cellulose 
C) linear low-density polyethylene 
D) carbon nanotubes

Question 9

The source of starting materials for synthetic polymers is primarily

Accepted Answer

A) wood. 
B) petroleum and natural gas. 
C) water. 
D) metals. 
A) wood. 
B) petroleum and natural gas. 
C) water. 
D) metals.

Question 10

Plastics make up ________ percent by mass of solid waste.

Accepted Answer

A) 12 
B) 5 
C) 25 
D) 30 
A) 12 
B) 5 
C) 25 
D) 30

Question 11

The first synthetic polymer was produced in 1909 and is known as

Accepted Answer

A) polyethylene. 
B) celluloid. 
C) bakelite. 
D) plexiglass. 
A) polyethylene. 
B) celluloid. 
C) bakelite. 
D) plexiglass.

Question 12

Flame-retardant fabrics often have ________ atoms incorporated into the fabric's fibers.

Accepted Answer

A) Br or O 
B) Cr or Br 
C) Br or Cl 
D) F or Br 
A) Br or O 
B) Cr or Br 
C) Br or Cl 
D) F or Br

Question 13

Compare thermoplastic and thermosetting polymers.

Accepted Answer

Thermoplastic and thermosetting polymers

Question 14

One of the problems in the production of PVC is that

Accepted Answer

A) vinyl chloride is explosive. 
B) vinyl chloride is carcinogenic. 
C) vinyl chloride is toxic. 
D) vinyl chloride is a solid at room temperature. 
A) vinyl chloride is explosive. 
B) vinyl chloride is carcinogenic. 
C) vinyl chloride is toxic. 
D) vinyl chloride is a solid at room temperature.

Question 15

Carbon can exist is several forms.Which of the following is a form of carbon and does not contain other atoms besides carbon?

Accepted Answer

A) fullerenes 
B) celluloid 
C) cellulose 
D) starch 
A) fullerenes 
B) celluloid 
C) cellulose 
D) starch

Question 16

One of the disadvantages of polybutadiene rubber for automobile tires is

Accepted Answer

A) poor resistance to gasoline and oils. 
B) its color. 
C) density. 
D) expense. 
A) poor resistance to gasoline and oils. 
B) its color. 
C) density. 
D) expense.

Question 17

Fire-retardant fabrics often have nitrogen or zinc atoms incorporated into the fibers of the polymers from which the cloth is made.

Accepted Answer

A) True 
 B)False

Question 18

The substance in paints that hardens to form a continuous surface coating is called a

Accepted Answer

A) pigment. 
B) binder. 
C) solvent. 
D) thinner. 
A) pigment. 
B) binder. 
C) solvent. 
D) thinner.

Question 19

Wool and silk are examples of which type of naturally occurring polymer?

Accepted Answer

A) cellulose 
B) polyesters 
C) nucleic acids 
D) proteins 
A) cellulose 
B) polyesters 
C) nucleic acids 
D) proteins

Question 20

Toxic hydrogen cyanide (HCN)is generated by burning

Accepted Answer

A) polyacrylonitrile. 
B) rubber. 
C) bullet-proof vests. 
D) polystyrene. 
A) polyacrylonitrile. 
B) rubber. 
C) bullet-proof vests. 
D) polystyrene.

Exam 10: Polymers

Which of the following statements about ethylene and polyethylene is true?

This formula in which n can be a very large number represents which of the following polymers?

Amorphous polymers tend to have great strength and rigidity while crystalline polymers tend to have greater elasticity.

Plasticizers,such as biphenyls,are very soluble in water.

Polyvinyl acetate is used for

The pendant group in polypropylene is a(n)

Polychlorinated biphenyls (PCBs)are no longer used as plasticizers because they are considered to be an environmental hazard.

Which of the following is a copolymer?

The source of starting materials for synthetic polymers is primarily

Plastics make up ________ percent by mass of solid waste.

The first synthetic polymer was produced in 1909 and is known as

Flame-retardant fabrics often have ________ atoms incorporated into the fabric's fibers.

Compare thermoplastic and thermosetting polymers.

One of the problems in the production of PVC is that

Carbon can exist is several forms.Which of the following is a form of carbon and does not contain other atoms besides carbon?

One of the disadvantages of polybutadiene rubber for automobile tires is

Fire-retardant fabrics often have nitrogen or zinc atoms incorporated into the fibers of the polymers from which the cloth is made.

The substance in paints that hardens to form a continuous surface coating is called a

Wool and silk are examples of which type of naturally occurring polymer?

Toxic hydrogen cyanide (HCN)is generated by burning

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