Question

Q.3 SHORT ANSWER QUESTIONS:

1. Define polymerisation.
2. What are plastics?​

Answer 1

Answer:

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Explanation:

1. Polymerization, any process in which relatively small molecules, called monomers, combine chemically to produce a very large chainlike or network molecule, called a polymer. The monomer molecules may be all alike, or they may represent two, three, or more different compounds.

2. Plastics are organic materials, just like wood, paper or wool. The raw materials used to produce plastics are natural products such as cellulose, coal, natural gas, salt and, of course, crude oil. The term ''plastic'' is derived from the Greek word ''plastikos'', meaning fit for moulding.

Answer 2

☑ Required Answer-

Polymerization, any process in which relatively small molecules, called monomers, combine chemically to produce a very large chainlike or network molecule, called a polymer. ... The monomer molecules may be all alike, or they may represent two, three, or more different compounds.

Plastics are a wide range of synthetic or semi-synthetic materials that use polymers as a main ingredient. Their plasticity makes it possible for plastics to be moulded, extruded or pressed into solid objects of various shapes.

Child material class: Polyvinyl chloride, Bakelite, Poly(methyl methacrylate)

Parent material class: Synthetic fiber