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Question:

On complete hydrogenation, natural rubber produces: polypropylene, ethylene-propylene copolymer, vulcanised rubber, polybutylene

polybutylene

vulcanised rubber

polypropylene

ethylene-propylene copolymer

Solution:

Natural rubber forms due to polymerisation of isoprene and on hydrogenation provide copolymer of ethylene and propylene. Hence the correct option is A.