1.

Amongest the following , the total number of elastromers is : polythene , polypropylene, natural rubber , vulcanized rubber, nylon 6 , Buna -S, Buna - N , neoprene , polyvinyl chloride , polystyrene.

Answer»


Solution :Five . NATURAL RUBBER, vulcanized rubber , BUNA -N , Buna -S and NEOPRENE are elastomers.


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