The increasing order of reactivity of the following compounds towards reaction with alkyl halides directly is: ( i ) ( i i ) ( i i i ) ( i v )

Step-by-step solution

Alkyl halide undergoes nucleophilic substitution reaction. More nucleophilic nitrogen of amine group, more reactive will it be with alkyl halides. Presence of electron-withdrawing group will decrease the nucleophilic character of amino group. Hence the order of reactivity;