Question

13. Which of the following is a thermosetting plastic? *


a) PVC

b) melamine

c) polyethylene

d) polystyrene

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Answer 1

Answer:

melamine

Explanation:

Melamine resin or melamine formaldehyde (also shortened to melamine) is a hard, thermosetting plastic material made from melamine and formaldehyde by polymerization.

While polyethylene is a thermoplastic polymer consisting of long hydrocarbon chains, PVC or Polyvinyl chloride, is also a thermoplastic produced by polymerization of vinyl chloride monomer (VCM) and nylon belongs to a class of polymers called polyamides is also a thermoplastic

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Answer 2

Answer:

Melamine

Explanation:

Melamine is a hard, thermosetting plastic material.