Assertion :Due to ortho effect basic nature of aniline decreases. Reason: It is due to steric hindrance because of solvation of cation.

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
When aniline acting as a base becomes $N H_{3}^{+}$ , it is usually stabilised by salvation but if there is a substituent on the ortho position, it inhibits salvation.
Thus the tendency to act like a base is reduced.

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