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AP ECET CHEMISTRY Multiple Choice Questions (MCQs)

AP ECET Chemistry: Polymers MCQs

106. What is polymerization?

a) Process of forming a single molecule

b) Process of breaking a molecule into smaller units

c) Process of forming large molecules by joining smaller molecules

d) Process of converting solid to liquid

Answer: c) Process of forming large molecules by joining smaller molecules

107. Which of the following is a type of polymerization?

a) Addition polymerization

b) Condensation polymerization

c) Co-polymerization

d) All of the above

Answer: d) All of the above

108. Which of the following is an example of addition polymerization?

a) Nylon formation

b) Teflon formation

c) Phenolic resin formation

d) Polyester formation

Answer: b) Teflon formation

109. Which type of polymerization involves the elimination of a small molecule such as water or hydrogen chloride?

a) Addition polymerization

b) Condensation polymerization

c) Co-polymerization

d) Cross-linking polymerization

Answer: b) Condensation polymerization

110. Which of the following is an example of condensation polymerization?

a) Polystyrene

b) Polyethylene

c) Nylon

d) PVC

Answer: c) Nylon

111. Which of the following is a characteristic of thermoplastics?

a) They are heat-resistant and cannot be re-melted

b) They can be repeatedly melted and reshaped

c) They are hard and rigid at all temperatures

d) They are brittle and break easily

Answer: b) They can be repeatedly melted and reshaped

112. Which of the following is a characteristic of thermosetting plastics?

a) Can be re-melted and reshaped

b) Cannot be re-melted and are permanently set

c) Are soft and flexible

d) Are liquid at room temperature

Answer: b) Cannot be re-melted and are permanently set

113. Which of the following plastics is an example of a thermoplastic?

a) Bakelite

b) Polyethylene

c) Epoxy resin

d) Urea formaldehyde

Answer: b) Polyethylene

114. Which of the following plastics is used in electrical insulation and non-stick coatings?

a) PVC

b) Teflon

c) Polystyrene

d) Urea formaldehyde

Answer: b) Teflon

115. Which of the following is an advantage of using plastics over traditional materials?

a) Plastics are heavier than metals

b) Plastics are prone to corrosion

c) Plastics are non-reactive and lightweight

d) Plastics are non-biodegradable

Answer: c) Plastics are non-reactive and lightweight

116. What is a disadvantage of using plastics?

a) Plastics are biodegradable

b) Plastics are durable and cost-effective

c) Plastics cause environmental pollution and are non-biodegradable

d) Plastics are good conductors of electricity

Answer: c) Plastics cause environmental pollution and are non-biodegradable

117. What is the main use of PVC (Polyvinyl chloride)?

a) Insulation in wires and cables

b) Non-stick cookware coatings

c) Construction materials like pipes

d) Rubber for tires

Answer: c) Construction materials like pipes

118. Which of the following is used as a raw material to produce natural rubber?

a) Oil

b) Latex

c) Resin

d) Styrene

Answer: b) Latex

119. What is the process used to improve the elasticity and durability of natural rubber?

a) Polymerization

b) Vulcanization

c) Oxidation

d) Condensation

Answer: b) Vulcanization

120. Which of the following is a synthetic elastomer?

a) Buna-N

b) Natural rubber

c) Neoprene

d) Both a and c

Answer: d) Both a and c

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AP ECET CHEMISTRY Multiple Choice Questions (MCQs)

AP ECET Chemistry: Polymers MCQs

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