Amonst the following which will undergo the fastest SN reaction.

Engineering

Chemistry

Aromatic Nucleophilic Substitution

Question

Amonst the following which will undergo the fastest S_N reaction.

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S_N reaction : $N \overset{⊝}{u}$ attacks faster where electron deficiency is much more that why in (B) option –NO₂ group at pera position $↑$ the reactants of $N \overset{⊝}{u}$ towards S_N reaction.