Statement-I : In natural rubber intermolecular attractions are very weakStatement-II : Natural rubber has no polar group and it has cis configuration.
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a
Both statements I and II are correct.
b
Statement I is correct but statement II is incorrect
c
Statement I is incorrect but statement II is correct
d
Both statements I and II are incorrect.
answer is A.
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Detailed Solution
Natural rubber is cis 1, 4 -poly isoprene.∴ it does not contain any polar groups the inter molecular attractions are weak Vanderwaals forces.Moreover it has cis configuration. Thus the polymeric chains are coiled and rubber attains spiral structure and elastic properties.