Question

The copolymer formed by addition polymerization of styrene and acrylonitrile in presence of peroxide is:
A.

B.

C.

D.

Answer 1

Hint:To answer this question, you must recall what copolymers are. In layman terms, a copolymer is a polymer which is formed by the combination of two or more different monomer units. Finding out the monomeric units of the polymers given in the question, we can find the answer.

Complete answer:
Polymerization can be of two types, namely condensation polymerization and addition polymerization. In the question, we will discuss only addition polymerization:
Addition polymerization is the polymerization that occurs by the simple linking between the monomer units without the formation of any by- products. In other words, it occurs through the coupling of monomers by using their double or triple bonds.
We know that copolymers are the polymers composed of two or more different monomer units and the process of the formation of copolymers is known as copolymerization. Some examples of copolymers are Acrylonitrile Butadiene Styrene (ABS), nitrile rubber and Polyethylene- vinyl acetate (PEVA).
The co- polymer formation by the addition polymerization of styrene and acrylonitrile in presence of peroxide can be given as:

Thus, the correct answer is C.
Note:
Polymer is a Greek word which means many parts. Polymerization is the process of the combination of relatively small molecules to produce a long chain or a network structure. This large molecule is known as a polymer. The small units that combine and make up a polymer are known as monomers. The monomer units can either all be the same or they might be two or more different compounds.