Chain growth polymerisation includes both homopolymerisation and copolymerisation
Step growth polymerisation requires a bifunctional monomer
Nylon6is an example of step-growth polymerisation
Chain growth polymerisation involves homopolymerisation only
Chain growth polymerisation (or addition polymerisation) involves homopolymerisation only. Examples of such polymers include polythene, orlon and Teflon. Thus the statement in option D is not true. Hence, the correct option is D