If both Statement-I and Statement-II are true, and Statement-I is the correct explanation of Statement-I.

If both Statement-I and Statement-II are true but Statement-II is not the correct explanation of Statement-I.

If Statement-I is true but Statement-II is false.

If Statement-I is false but Statement-II is true. (i) Statement I : Friedel-crafts reaction between benzene and acetic anhydride in presence of anhydrous AlCl3 yields acetophenone. Statement II : Acetophenone formed poisonous catalyst, preventing further reaction. (ii) Statement I : Aryl halides undergo nucleophilic substitution reaction with ease. Statement II : The C–H bond in aryl halides has partial double bond character. (iii) Statement I : Benzene does not decolourize Br2-water. Statement II : Benzene is stabilized by resonance due to delocalization of π -electrons.