Question

The synthesis of which of the following polymers involves the repeated loss of small molecules?

(a) Polythene

(b) Buna-S

(c) Buna-N

(d) Nylon-6,6

This question was addressed to me during an internship interview.

This question is from Classification of Polymers in chapter Polymers of Chemistry – Class 12

Answer 1

Correct answer is (d) Nylon-6,6

For explanation I would say: Condensation polymers are formed by the repeated condensation reaction between two different bi-functional or tr-functional monomeric units, along with the loss of small molecules like water, alcohol, HCl, etc. Nylon-6,6 is formed by the condensation of hexamethylene diamine and adipic acid, resulting in loss of water molecules.