Assertion :In case of aryl halides, halogens are moderately deactivating. Reason: Halogens are ortho, para directing groups.

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 B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Halogens are moderately deactivating. Because of their strong-I effect, overall electron density on benzene ring decreases. Due to resonance, the electron density on 0- and p- positions is greater than that at the meta position hence, they are 0- and p- directing groups.
Thus both Assertion and Reason are correct but the Reason is not the correct explanation of the Assertion.

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