Differentiate between rubbers and plastics on the basis of intermolecular forces.

(N/A) Rubbers are elastomers,which are polymers held together by the weakest intermolecular forces of attraction. These weak forces allow the polymer chains to be stretched,and they return to their original shape upon the release of the stretching force.
Plastics are generally thermoplastic or thermosetting polymers that possess intermediate to strong intermolecular forces of attraction compared to elastomers. These forces are stronger than those in rubbers,which makes plastics more rigid and capable of being moulded into various shapes.