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Which is true about Buna-N? (1) It is a linear polymer of 1, 3-butadiene (2) It is obtained by copolymerization of 1, 3-butadiene and styrene (3) It is obtained by copolymerization of 1, 3-butadiene and acrylonitrile (4) The suffix N in Buna-N stands for its natural occurrence.

1. (1)
2. (2)
3. (3)
4. (4)

Correct answer: (3)

Solution

Buna-N is specifically produced through the copolymerization of 1,3-butadiene and acrylonitrile, which gives it unique properties suitable for various applications, particularly in the production of synthetic rubber.

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