Question

List - I List - II
A) Polystyrene p) Condensation polymer
B) Polythene q) Thermoplastic polymer
C) Nylon- $6,6$ r) Polyamide
D) Terylene s) Addition polymer

• A. (a - q,s), (b - q,s), (c - p,q,r), (d - p)
• B. (a - p), (b - s), (c - p,r), (d - p,q)
• C. (a - s), (b - q), (c - p,r), (d - q)
• D. (a - q), (b - s), (c - r), (d - p,q)

Answer 1

Answer: (A)

(a - q,s), (b - q,s), (c - p,q,r), (d - p)

The addition polymers are formed by the repeated addition of monomer molecules possessing double or triple bonds, e.g., the formation of polythene from ethene and polypropene from propene. Addition polymers: Polyvinyl chloride, Polythene, Buna-S, Buna-N, etc.

Polystyrene is a synthetic aromatic polymer made from the monomer styrene.

It is addition polymer as it is made of addition of monomers.

The condensation polymers are formed by repeated condensation reaction between two different bi-functional or tri-functional monomeric units.

In these polymerisation reactions, the elimination of small molecules such as water, alcohol, hydrogen chloride, etc. take place. The examples are terylene (dacron), nylon 6, 6, nylon 6, etc. For example, nylon 6, 6 is formed by the condensation of hexamethylene diamine with adipic acid.

Hence, option A is correct.