Which of the following polymers is formed by addition polymerisation?

A. Nylon

B. Polyethylene

C. Polyester

D. Bakelite

Which polymer is commonly used in the textile industry due to its strength and durability?

A. Polypropylene

B. PVC

C. Nylon

D. Polystyrene

Which environmental concern is primarily associated with non-biodegradable polymers?

A. Air pollution

B. Water pollution

C. Soil erosion

D. Landfill waste accumulation

Which of the following is a condensation polymer?

A. Polyethylene

B. Polypropylene

C. Nylon

D. Polybutadiene

Which polymer is commonly used in packaging due to its clarity and flexibility?

A. Polypropylene

B. PVC

C. Nylon

D. Polyester

a) Describe the mechanism of the formation of polyethylene. [3]

b) How does the structure of polyethylene differ from polypropylene? [2]

a) Explain the environmental concerns associated with the disposal of polymers. [3]

b) How can recycling help mitigate the environmental impact of polymers? [2]

a) Describe the mechanism of formation of nylon. [3]

b) Why is nylon commonly used in textiles? [2]

a) Explain the significance of polymers in biochemistry and medicine. [3]

b) Describe the properties of polyester that make it suitable for use in textiles. [2]

c) How does the structure of polyester differ from that of nylon? [3]

a) What are the environmental concerns associated with the use of non-biodegradable polymers? [3]

b) Explain the process of recycling polymers. [3]

c) How does recycling polymers contribute to sustainable development? [2]

Which of the following polymers can be recycled easily?

A. Thermosetting polymers

B. Elastomers

C. Thermoplastics

D. Fibres

Which of the following is NOT a use of polyester?

A. Making boat sails

B. Insulation for electrical wires

C. In the synthesis of dyes

D. Making bottles

Which of the following is a disadvantage of using synthetic polymers?

A. They are lightweight

B. They are resistant to chemicals

C. They contribute to non-biodegradable waste

D. They have a high tensile strength

Which polymer is derived from renewable resources and is biodegradable?

A. Polyethylene

B. Polystyrene

C. Poly(lactic acid)

D. PVC

Which of the following reactions is involved in the formation of polyesters?

A. Hydrolysis

B. Oxidation

C. Esterification

D. Hydrogenation

a) Describe the mechanism of formation of polypropylene. [3]

b) How does the structure of polypropylene affect its properties? [2]

c) Why is polypropylene used in packaging materials? [3]

a) What is the importance of polymers in the synthesis of dyes and pharmaceuticals? [3]

b) Describe the environmental impact of improper disposal of polymers. [3]

c) How can the environmental impact of polymers be reduced? [2]

a) Describe the general mechanism of formation for addition polymers. [3]

b) How does the structure of polyethylene differ from polypropylene? [2]

c) Explain the environmental concerns associated with the disposal of polyethylene products. [3]

d) Suggest a method to mitigate the environmental impact of polyethylene waste. [2]

a) What are the key properties of nylon that make it suitable for use in textiles? [3]

b) Describe the mechanism of formation for condensation polymers, using nylon as an example. [4]

c) How do the properties of polyester make it a preferred choice for packaging materials? [3]

d) Explain the significance of recycling in the context of polyester products. [2]

a) Why are polymers like polypropylene considered non-biodegradable? [2]

b) Describe the impact of non-biodegradable polymers on marine ecosystems. [3]

c) How does the structure of a polymer affect its properties and potential applications? [3]

d) Suggest ways in which the environmental impact of non-biodegradable polymers can be reduced. [4]