Q. Assertion: The correct order of increasing molecular forces in the given polymers is : Buna-, Polythene, Nylon-.
Reason:The properties of polymers depend upon the molecular forces.

 2118  205 Polymers Report Error

Solution:

Elastomers (buna-) have weakest intermolecuiar forces.
Fibres (nylon-) have strong intermolecuiar forces. Thermoplastic polymers (polythene) have intermolecuiar forces intermediate between elastomers and fibres.