Question

To solve the problems of looking bald, human hair wigs are worn which are very expensive. Synthetic wigs are made from a copolymer of vinyl nitrile and acrylonitrile called,
A.Dynel
B.Cellulose
C.Polyacrylonitrile
D.PVC or (poly vinyl chloride)

Answer 1

Hint Vinyl chloride is a chemical compound which contains two materials and it contains two materials which are BUNA N and poly vinyl chloride. And it is used to prepare so many plastic products like wires, pipes, packaging materials etc. An acrylonitrile is a chemical compound with formula, $C{H_3}C{H_2}CN$. Here, it involves a vinyl group connected with a nitrile group.

Complete answer:
The synthetic human wigs are prepared by using a copolymer of vinyl nitrile and acrylonitrile and it is called Dynel. And this is a copolymer. The Dynel is a type of synthetic fiber which is used to prepare fibre reinforced plastic composite materials and in marine industries. The chemical formula of Dynel can be written as,

Hence, option (A) is correct.
Cellulose is a polysaccharide having a linear chain of beta lined D- glucose units. And it is not used to prepare synthetic wigs. Hence, the option (B) is incorrect.
Polyacrylonitrile is a chemical precursor which is used to prepare the polymers like carbon fiber. But it is not used in synthetic wigs. Hence, option (C) is incorrect.
Poly vinyl chloride is a synthetic plastic polymer and it is widely used to prepare drainage pipes, blood storage bags, water service pipes etc. And synthetic wigs are not prepared by using Poly Vinyl Chloride. Hence, the option (D) is incorrect.

Note:
The Synthetic wigs are made from a copolymer of vinyl nitrile and acrylonitrile and it is known as Dynel which is a trade name. It shows the property of both acrylonitrile and vinyl nitrile. And the Dynel is also used in marine industries to prepare some materials. This is also used to fabricate the synthetic wigs. And the Dynel is mainly produced by Union Carbide Corporation.