Which is true about Buna-N?
It is a linear polymer of butadiene.
It is obtained by copolymerization of butadiene and styrene.
It is obtained by copolymerization of butadiene and acrylonitrile.
The suffix N in Buna-N stands for its natural occurrence.
Buna - N is a copolymer of 1,3- Butadiene and Acrylonitrile.
Hence, option (3) is correct.
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