Question:

Consider the following statements
Statement - I : Natural rubber is a polymer of 2-chloro-1, 3-butadiene
Statement - II : 1, 3-Butadiene-styrene copolymer is synthetic rubber
The correct answer is

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{Natural Rubber} = Isoprene. {Neoprene} = Chloroprene. {Buna-S} = Butadiene + Styrene. {Buna-N} = Butadiene + Acrylonitrile.

Updated On: Mar 31, 2026

Both statements I and II are correct
Both statements I and II are not correct
Statement I is correct, but statement II is not correct
Statement I is not correct, but statement II is correct

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The Correct Option is D

Solution and Explanation

Step 1: Analyze Statement I:
Natural rubber is a linear polymer of Isoprene (2-methyl-1,3-butadiene), specifically cis-1,4-polyisoprene. The polymer of 2-chloro-1,3-butadiene (Chloroprene) is called Neoprene (synthetic rubber). Therefore, Statement I is Incorrect.
Step 2: Analyze Statement II:
1,3-Butadiene-styrene copolymer is known as Buna-S (SBR - Styrene Butadiene Rubber). This is a widely used synthetic rubber. Therefore, Statement II is Correct.
Step 3: Conclusion:
Statement I is False, Statement II is True. Matches Option (D).

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