Q. The monomers of Buna-S rubber are
A) Vinyl chloride and sulphur
B) Butadiene
C) Styrene and butadiene
D) Isoprene and butadiene
Explanation
(c)
Buna-S rubber is also called SBR i.e., styrene butadiene rubber. It is a copolymer of 75% butadiene (CH_{2}=CH—CH =CH_{2}) and 25% styrene(C_{6}H_{5} —CH =CH_{2}).
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Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.