1.

SBR(GRS,Buna-S,Cold Rubber)is obtained by free radical intiator.The most commenly used free radical initiator is:

Answer»

Buta`-1,3-` dinene `(70%)` and `30%` phenyl ethene (STYRENE)
Chloroprene and styrene
VINYL acetylene and styrene
ISOPRENE and `1,3-` butadiene

Answer :A


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