Assertion :Addition of halogens in dry condition to an alkene is regioselective i.e.devoid of any rearrangement. Reason: Addition of halogen at carbon-carbon double bond proceed via a cyclic harmonium ion intermediate.

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

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

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Assertion
Addition of halogens in dry condition to an alkene is regioselective i.e.devoid of any rearrangement. (True)

Reason

Addition of halogen at carbon-carbon double bond proceeds via a cyclic harmonium ion intermediate. (True)

Cyclic halonium ion intermediate is responsible for a lack of rearrangement. It does not allow rotation and rearrangement of halogens. So Reason is a correct explanation for the Assertion.

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