Assertion :Acetic acid is a strong acid. Reason: Ammonia can accept a proton.

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

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

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The Assertion is correct but Reason is not correct.

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The Assertion is not correct but Reason is correct.

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Solution

The correct option is D The Assertion is not correct but Reason is correct.
Acetic acid is a weak acid as it cannot completely dissociate in water. Its pH value is also high.
Ammonia can accept proton to form ammonium ion.
$N H_{3} + H^{+} \to N H_{4}^{+}$
Thus Assertion is wrong but Reason is correct.

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Assertion :Acetic acid is a strong acid. Reason: Ammonia can accept a proton.

The correct option is D The Assertion is not correct but Reason is correct.Acetic acid is a weak acid as it cannot completely dissociate in water. Its pH value is also high.Ammonia can accept proton to form ammonium ion.NH3+H+→NH+4Thus Assertion is wrong but Reason is correct.