1.

The main point of difference between buna-N and buna-S isA. the former is homopolymer whereas the later is copolymerB. former contains buta-1,3-diene but later does notC. former contains acrylonitrile but later containsD. All of the above

Answer» Correct Answer - C
Buna-N and buna-S both are synthetic rubber and copolymers. The difference lies in their composition . Buna-N constituents are buta-1,3-diene and acrylonitrile. Buna-S constituents are buta-1, 3-diene and styrene .


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