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Standard XII

Chemistry

Rubber

Assertion: Na...

Question

Assertion: Natural rubber is all cis-polyisoprene.
Reason: trans - polyisoprene cannot be formed.

Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion

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Assertion is correct but Reason is incorrect.

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Assertion is incorrect but Reason is correct.

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion
$Natural rubber consists almost exclusively of the cis-1,4 polymer.$
$Trans-polyisopropene cannot be manufactured.$

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Assertion: Natural rubber is all cis-polyisoprene. Reason: trans - polyisoprene cannot be formed.

Assertion: Natural rubber is all cis-polyisoprene.

Reason: trans - polyisoprene cannot be formed.

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation of the AssertionNatural rubber consists almost exclusively of the cis-1,4 polymer.Trans-polyisopropene cannot be manufactured.

Assertion: Natural rubber is all cis-polyisoprene.
Reason: trans - polyisoprene cannot be formed.

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion
$Natural rubber consists almost exclusively of the cis-1,4 polymer.$
$Trans-polyisopropene cannot be manufactured.$