Question

Identify the four groups into which the polymers are classified on the basis of the magnitude of intermolecular forces present in them. To which group or groups do polythene and bakelite belong?

Answer 1

Polymers are classified into four groups based on the magnitude of intermolecular forces. They ar —
(i) Elastomers 

(ii) Fibers

(iii) Thermoplastic polymers

(iv) Thermosetting polymers

Polythene—Polythene is a thermoplastic polymer.
Bakelite— It is a thermosetting polymer.