Question:
Buna-S is prepared from
Buna-S is prepared from
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Buna-S is a copolymer of butadiene and styrene.
Updated On: Oct 1, 2026
- 1, 3- butadiene and vinyl cyanide
- 1, 3- butadiene and styrene
- 1,2 -butadiene and vinyl cyanide
- 1, 2-butadiene and styrene
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The Correct Option is B
Solution and Explanation
Step 1: Name
Buna-S: Bu for butadiene, na for sodium (the catalyst), S for styrene.
Step 2: Reaction
It is made by copolymerisation of \(1,3-butadiene\) and \(styrene\) in a 3:1 ratio. Vinyl cyanide gives Buna-N instead.
Final Answer:
Buna-S is made from 1,3-butadiene and styrene. \[ \boxed{\text{(B)}\ \text{1,3-butadiene and styrene}} \]
Buna-S: Bu for butadiene, na for sodium (the catalyst), S for styrene.
Step 2: Reaction
It is made by copolymerisation of \(1,3-butadiene\) and \(styrene\) in a 3:1 ratio. Vinyl cyanide gives Buna-N instead.
Final Answer:
Buna-S is made from 1,3-butadiene and styrene. \[ \boxed{\text{(B)}\ \text{1,3-butadiene and styrene}} \]
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