Question

E. Answer the following in few words.
1. What is the basic unit of a polymer?
2. Define polymer.
3. What is the raw material used for making rayon?
4. Which polyester is used to make jars?
5. Give one disadvantage of plastics.
6. Name a fibre which is stronger than cotton.
7. Which synthetic fibre is similar to wool?
8. Write one advantage of using synthetic fibres.
(please tell all questions answere) ​

Answer 1

Answer:

1. a monomer is a molecule that form the basic unit of polymer.
2. commonly used definition of polymer is a material that is composed of monomers that are all linked together to form chain.

Answer 2

Answer:

1) monomer 2) A natural or artificial chemical compound consisting of large molecules 3) wood pulp and wood cellulose 4) polythene terephthalate 5) when plastic are burned they produce toxic gases and smoke 6) like cotton, flax fibre making it stronger , crisper and stiffer to handle 7) Acrylic is similar to wool 8 ) synthetic fibres do not absorb water or sweat. in hot and humid weather therefore clothes