JEE Main Chemistry question

ChemistryPolymersJEE Main

Not in JEE Main or NEET syllabus

Each question contains ASSERTION (Assertion) and REASON (Reason). Each question has the 4 choices (a), (b), (c) and (d), out of which ONLY ONE is correct.

Statement 1 (Assertion): Natural rubber is cis-polyisoprene. Statement 2 (Reason): trans-polyisoprene cannot be formed.

Answer: (C)

Solution

Natural rubber is indeed cis-1,4-polyisoprene, so the assertion is true. However, the reason is false: polyisoprene's double bonds mean it can exist in both geometrical isomeric forms, and the trans

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Question ID VK-151475