Assertion :Addition of 1.0 equivalent of $H_{2}$ to 4-octyne gives $t r a n s$ -4-octene as major product Reason: A cyclic bromonium ion intermediate is formed

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 C Assertion is correct but Reason is incorrect
Addition of 1.0 equivalent of $H_{2}$ to 4-octyne gives 4-octene as major product. A vinylic carbocation intermediate is formed.
Hence, Assertion is correct but Reason is incorrect.

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