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

(A): In strong acidic solutions aniline becomes more reactive towards electrophilic reagents. (R): The amino group is completely protonated in strong acidic solution, the lone pair of electrons on the nitrogen is no longer available for resonance.

Statement I: In strongly acidic solutions , anline becomes more reactive towards electrophilic reagents ltbRgt Statement II: The amino group being completely protonated in strongly acidic solution, the line pair of electrons on nitrogen is no longer avalible for resonace.

Statement 1 : In strongly acidic solutions, aniline becomes more reactive towards electrophilic reagents Statement 2 : The amino group is protonated in strongly acidic solution, and thus the lone pair of electron on the nitrogen is no longer available for resonance.

Assertion : In strongly acidic solution, aniline becomes less reactive towards electrophilic reagents . Reason : Due to protonation of amino group the lone pair of electrons on nitrogen is not available for donation to benzene ring by resonance .

Assertion: Phenol is more reactive than benzene towards electrophilic reactions. Reason : The +R effect of OH group increases the electron density on benzene nucleus.

Assertion: Acetanilide is more reactive than aniline towards electrophilic substitution reactions. Reason: The activating effect of NHCOCH_3 is less than that of amino group