Question

Artificial (Man-made) wool is known by the name:
A.Rayon
B.Acrylic
C.Polycot
D.None of these

Answer 1

Man-made polymer is an industrially produced chemical substance consisting of monomers linked together by covalent bonds which is also called synthetic polymer. This synthetic polymer is usually obtained from petroleum after the undergoing refining and cracking process.

Complete step by step answer:
Depending upon source polymers are broadly classified into:
1 .Natural polymer
2 .Semisynthetic polymer
3. Synthetic polymer

1. NATURAL POLYMER: Polymers found in nature i.e. in animals and plants are called natural polymers.
   For Ex. Cellulose, starch, proteins.
2. SEMI-SYNTHETIC POLYMER: polymers obtained from natural polymers by chemical modification is called semi-synthetic polymer. Few examples are listed below,
   a) Rayon: cellulose on acetylation with acetic anhydride in presence of conc. sulphuric acid gives cellulose diacetate which is used for making threads of rayon.
   b) Polycot: is a fabric mixture of cotton and polyester fibres. Cotton is a natural fibre obtained from cotton plant while polyester is synthetic fibre made from petroleum.
3. SYNTHETIC POLYMER: A large no. of man-made polymers used in daily life and in industry is called synthetic or artificial polymer or man-made polymer.
   For Ex. Acrylic: is a known artificial or synthetic wool because it resembles wool. It is made up of repeating units of a chemical ester.it is widely used to make clothes.

Thus, option B is the correct answer.

Note:
Acrylic is lightweight, soft, warm and wool like polymer. Some acrylic is found in coloured and pigmented form. Some acrylic used in clothing as a less expensive alternative to cashmere due to the similar feeling of the material as cashmere is very expensive and is not available everywhere.