Question 1

Silicone is a(n)

Accepted Answer

A) polyester. 
B) plasticizer. 
C) conducting polymer. 
D) None of the above. 
A) polyester. 
B) plasticizer. 
C) conducting polymer. 
D) None of the above.

Question 2

Neoprene is an elastomer that shows better resistance to oil and gasoline than other elastomers.

Accepted Answer

A) True 
 B)False

Question 3

Production of PCBs was discontinued in 1977,yet PCBs are still found in the environment.The reason for this is

Accepted Answer

A) PCBs are formed naturally by plants and animals. 
B) PCBs are very stable molecules. 
C) PCBs are very reactive molecules. 
D) PCBs are imported from other countries where their production is not banned. 
A) PCBs are formed naturally by plants and animals. 
B) PCBs are very stable molecules. 
C) PCBs are very reactive molecules. 
D) PCBs are imported from other countries where their production is not banned.

Question 4

What is Teflon used for?

Accepted Answer

A) food wrap 
B) nonstick cookware 
C) bullet-proof vests 
D) garbage bags 
A) food wrap 
B) nonstick cookware 
C) bullet-proof vests 
D) garbage bags

Question 5

Which of the following is the simplest synthetic polymer?

Accepted Answer

A) polymethane 
B) polyethylene 
C) polyvinyl chloride 
D) polystyrene 
A) polymethane 
B) polyethylene 
C) polyvinyl chloride 
D) polystyrene

Question 6

An object will be used in an environment that has a temperature range of -20°C to 10°C.The object must remain flexible and rubbery.It should have a Tg that is

Accepted Answer

A) greater than 10°C. 
B) less than 10°C but greater than -20°C. 
C) exactly -20°C. 
D) less than -20°C. 
A) greater than 10°C. 
B) less than 10°C but greater than -20°C. 
C) exactly -20°C. 
D) less than -20°C.

Question 7

In order for a synthetic polymer to be used as a binder in water-base latex paints,it must have ________ properties.

Accepted Answer

A) reactive 
B) inert 
C) rubberlike 
D) aromatic 
A) reactive 
B) inert 
C) rubberlike 
D) aromatic

Question 8

High-density polyethylene is composed of

Accepted Answer

A) primarily linear, unbranched chains of polyethylene in a close packing arrangement. 
B) primarily highly branched, non-linear chains of polyethylene in a diffuse packing arrangement. 
C) a mixture of polyethylene and polystyrene. 
D) polyethylene with high density plasticizers added to increase density. 
A) primarily linear, unbranched chains of polyethylene in a close packing arrangement. 
B) primarily highly branched, non-linear chains of polyethylene in a diffuse packing arrangement. 
C) a mixture of polyethylene and polystyrene. 
D) polyethylene with high density plasticizers added to increase density.

Question 9

The development of which polymer enabled the British to have effective radar equipment and thus contributed to the British success in the Battle of Britain in World War II?

Accepted Answer

A) polystyrene 
B) polyvinyl chloride 
C) Teflon 
D) polyethylene 
A) polystyrene 
B) polyvinyl chloride 
C) Teflon 
D) polyethylene

Question 10

Which statement relating monomers and polymers is correct?

Accepted Answer

A) They have the same chemical and physical properties. 
B) They have different chemical and physical properties. 
C) The monomer is usually a solid, while the polymer is usually a liquid or gas. 
D) They have the same chemical formula. 
A) They have the same chemical and physical properties. 
B) They have different chemical and physical properties. 
C) The monomer is usually a solid, while the polymer is usually a liquid or gas. 
D) They have the same chemical formula.

Question 11

Natural polymers which carry the coded genetic information that makes each individual unique are

Accepted Answer

A) proteins. 
B) carboxylic acids. 
C) esters. 
D) nucleic acids. 
A) proteins. 
B) carboxylic acids. 
C) esters. 
D) nucleic acids.

Question 12

The word polymer means

Accepted Answer

A) many parts. 
B) many sides. 
C) many rings. 
D) many carbons. 
A) many parts. 
B) many sides. 
C) many rings. 
D) many carbons.

Question 13

Polymers can be made from corn,soybeans,and sugarcane.

Accepted Answer

A) True 
 B)False

Question 14

One of the advantages of incinerating plastics is

Accepted Answer

A) the high fuel value. 
B) no air pollution. 
C) all polymers burn efficiently. 
D) All of the above are advantages of incinerating plastics. 
A) the high fuel value. 
B) no air pollution. 
C) all polymers burn efficiently. 
D) All of the above are advantages of incinerating plastics.

Question 15

A plasticizer makes a material more flexible and less brittle by raising its glass transition temperature (Tg).

Accepted Answer

A) True 
 B)False

Question 16

The main use of elastomers is

Accepted Answer

A) automobile tires. 
B) synthetic body parts. 
C) waxed paper. 
D) wigs. 
A) automobile tires. 
B) synthetic body parts. 
C) waxed paper. 
D) wigs.

Question 17

Which of the following characteristics of synthetic polymers is NOT a problem?

Accepted Answer

A) They frequently are neither biodegradable nor photodegradable. 
B) They frequently give off poisonous gases when they are burned. 
C) They generally have a high energy content and can be burned. 
D) They make up a large volume of the waste which goes into landfills. 
A) They frequently are neither biodegradable nor photodegradable. 
B) They frequently give off poisonous gases when they are burned. 
C) They generally have a high energy content and can be burned. 
D) They make up a large volume of the waste which goes into landfills.

Question 18

One example of a condensation polymer is

Accepted Answer

A) polyvinyl chloride. 
B) nylon. 
C) Plexiglass. 
D) polyvinyl acetate. 
A) polyvinyl chloride. 
B) nylon. 
C) Plexiglass. 
D) polyvinyl acetate.

Question 19

The first attempts to make synthetic polymers involved

Accepted Answer

A) combining monomers of ethylene to form polyethylene. 
B) modifying a naturally occurring polymer to form celluloid. 
C) compression molding. 
D) the synthesis of polyamides. 
A) combining monomers of ethylene to form polyethylene. 
B) modifying a naturally occurring polymer to form celluloid. 
C) compression molding. 
D) the synthesis of polyamides.

Question 20

Draw part of the repeating structure of polyvinyl acetate.

Accepted Answer

Polyvinyl acetate (PVAc) is a synthetic

Exam 10: Polymers

Silicone is a(n)

Neoprene is an elastomer that shows better resistance to oil and gasoline than other elastomers.

Production of PCBs was discontinued in 1977,yet PCBs are still found in the environment.The reason for this is

What is Teflon used for?

Which of the following is the simplest synthetic polymer?

An object will be used in an environment that has a temperature range of -20°C to 10°C.The object must remain flexible and rubbery.It should have a Tg that is

In order for a synthetic polymer to be used as a binder in water-base latex paints,it must have ________ properties.

High-density polyethylene is composed of

The development of which polymer enabled the British to have effective radar equipment and thus contributed to the British success in the Battle of Britain in World War II?

Which statement relating monomers and polymers is correct?

Natural polymers which carry the coded genetic information that makes each individual unique are

The word polymer means

Polymers can be made from corn,soybeans,and sugarcane.

One of the advantages of incinerating plastics is

A plasticizer makes a material more flexible and less brittle by raising its glass transition temperature (Tg).

The main use of elastomers is

Which of the following characteristics of synthetic polymers is NOT a problem?

One example of a condensation polymer is

The first attempts to make synthetic polymers involved

Draw part of the repeating structure of polyvinyl acetate.

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