Which of the following 2-halo nitrobenzene is | vedclass

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(A) Nucleophilic aromatic substitution $(S_NAr)$ typically proceeds via an addition-elimination mechanism. The rate-determining step $(r.d.s.)$ involv

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$1-$fluoro$-2-$nitrobenzene

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(A) Nucleophilic aromatic substitution $(S_NAr)$ typically proceeds via an addition-elimination mechanism. The rate-determining step $(r.d.s.)$ involves the attack of the nucleophile on the carbon atom bearing the halogen,forming a Meisenheimer complex.In this step,the electron-withdrawing effect ($-I$ effect) of the halogen atom stabilizes the transition state by withdrawing electron density from the ring.Since fluorine $(F)$ has the highest electronegativity among the halogens,it exerts the strongest $-I$ effect.Therefore,$1$-fluoro-$2$-nitrobenzene is the most reactive towards nucleophilic aromatic substitution.

Which of the following $2$-halo nitrobenzene is most reactive towards nucleophilic aromatic substitution?

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