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Buna-S can be represented as:
ChemistryPolymersJEE MainJEE Main 2023 (10 Apr Shift 2)
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Solution:
2728 Upvotes Verified Answer
The correct answer is:

Buna-S is a copolymer of 1,3-butadiene and styrene. It is prepared by copolymerisation of 1,3 butadiene and styrene along with sodium. In this process peroxide is used as a catalyst at 5C therefore the formed product is also known as cold rubber. 

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