Question

Very Short-Answer Questions:
These questions carry 1 mark each. Answer each of them in one word or a sentence or
1. Name some natural fibres,
2. Namne some artificial fibres.
3. Which polymer is used as anti-gorrosion coating on the articles made of copper?
4 What is the lighter polymer of polythene called?
5 What is parachute made up of?
What has anti-sticking property?
7. Give two examples of thermoplastic
3. Name two monomers used for preparing terytone
Short Answer Questions:
These guests carry 2-3 marks each Answers
1 Distinguish between natural fibre and man-made for
2 Define thermosetting plastic​

Answer 1

SHORT ANSWER QUESTIONS:

1. Natural fabrics, like merino wool, cotton, cashmere, and silk, are made of fibers that are produced by animals and plants. Synthetic fabrics, like polyester, nylon and acrylic, are "man-made" fibers that are created in laboratories.

• A thermosetting polymer, resin, or plastic, often called a thermoset, is a polymer that is irreversibly hardened by curing from a soft solid or viscous liquid prepolymer or resin. Curing is induced by heat or suitable radiation and may be promoted by high pressure, or mixing with a catalyst.

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