Organic Chemistry: Polymers - SS3 Chemistry Past Questions and Answers - page 2
Explain the concept of polymers and their significance in modern materials science. Provide examples of synthetic and natural polymers, highlighting their unique properties and applications.
Discuss the environmental impact of plastics and the challenges faced in mitigating plastic pollution. Analyse current strategies and technologies aimed at reducing plastic waste.
Discuss the environmental impact of plastics and the challenges faced in mitigating plastic pollution. Analyse current strategies and technologies aimed at reducing plastic waste.
Which of the following polymers is an example of a thermosetting polymer?
Polyethylene
Polypropylene
Polyvinyl chloride (PVC)
Phenolic resin
Which type of polymerization process leads to the formation of nylon and polyester?
Addition polymerization
Condensation polymerization
Copolymerization
Ring-opening polymerization
What type of polymer is formed when two different monomers are polymerized together?
Homopolymer
Copolymer
Isopolymer
Heteropolymer
Which of the following polymers exhibits the property of the shape-memory effect?
Polyethylene
Polypropylene
Polyurethane
Polystyrene
What is the main difference between thermoplastics and thermosetting polymers?
Thermoplastics can be recycled, while thermosetting polymers cannot.
Thermoplastics are amorphous, while thermosetting polymers are crystalline.
Thermoplastics can be moulded and remoulded multiple times, while thermosetting polymers are permanently shaped after curing.
Thermoplastics are derived from natural sources, while thermosetting polymers are synthetic.
Discuss the classification of polymers based on their origin, structure, and behaviour. Provide examples of each polymer class, and explain their unique characteristics and applications.
Which type of polymerization involves the formation of a simple molecule, such as water, as a byproduct during the polymerization process?
Addition Polymerization
Condensation Polymerization
Radical Polymerization
Step-Growth Polymerization