Assertion :In strongly acidic solutions, aniline becomes more reactive towards electrophilic reagents. Reason: The amino group being completely protonated in strongly acidic solution, the lone pair of electrons on nitrogen is no longer available for resonance.

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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Assertion is incorrect and Reason are correct

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Solution

The correct option is D Assertion is incorrect and Reason are correct
In strongly acidic medium, aniline is protonated, so $L P {- e}^{'} s$ are not available to produce mesomeric or electromeric effect; thus, aniline becomes less reactive towards $S E$ reactions.
Assertion is incorrect and Reason are correct

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Q. Assertion :In strongly acidic solutions, aniline becomes more reactive towards electrophilic reagents Reason: The amino group being completely protonated in strongly acidic solution, the lone pair electrons on the nitrogen is no longer avaiable for resonance.

In the following question two Statement-I (Assertion) and Statement-2 (Reason) are provided. each question has 4 choices (a), (b), (c) and (d) for its answer, out of which Only One is correct. Mark your responses from the following options:
Statement-1: Aniline becomes more reactive towards electrophilic aromatic substitution in presence of strongly acidic solution.
Statement-2: The amino group is completely protonated in strongly acidic medium. Thus the lone pair of electrons on the nitrogen is no longer available for resonance.

Assertion (A) p-nitrophenol is more acidic than phenol.
Reason (R) Nitro group helps in the stabilisation of the phenoxide ion by dispersal of negative charge due to resonance.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Q. Assertion: The compressibility factor for

H_{2}

and

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

H_{2}

and

H e

can be derived from Van der Waal's equation.

Q. Read the assertion and reason carefully to mark the correct option out of the options given below:
(a)If both assertion and reason are true and the reason is the correct explanation of the assertion.
(b)If both assertion and reason are true but reason is not the correct explanation of the assertion.
(c)If assertion is true but reason is false.
(d)If assertion is false but reason is true.

Assertion: Phenol is more reactive than benzene towards electrophilic substitution reaction.
Reason : In the case of phenol, the intermediate phenoxide is more resonance stabilized.

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Assertion :In strongly acidic solutions, aniline becomes more reactive towards electrophilic reagents. Reason: The amino group being completely protonated in strongly acidic solution, the lone pair of electrons on nitrogen is no longer available for resonance.

The correct option is D Assertion is incorrect and Reason are correctIn strongly acidic medium, aniline is protonated, so LP−e′s are not available to produce mesomeric or electromeric effect; thus, aniline becomes less reactive towards SE reactions. Assertion is incorrect and Reason are correct