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(D) Nucleophilic aromatic substitution in haloarenes is facilitated by the presence of electron-withdrawing groups (like $-NO_2$) at the ortho and par

Vedclass · Accepted Answer

$1-$Chloro$-2,4,6-$trinitrobenzene

Vedclass · Answer

(D) Nucleophilic aromatic substitution in haloarenes is facilitated by the presence of electron-withdrawing groups (like $-NO_2$) at the ortho and para positions relative to the halogen atom.These groups stabilize the carbanion intermediate formed during the reaction through the resonance effect.As the number of electron-withdrawing $-NO_2$ groups increases,the electron density on the benzene ring decreases,making the carbon atom attached to the chlorine more susceptible to nucleophilic attack.Therefore,the reactivity increases with the number of $-NO_2$ groups.Among the given options,$1$-chloro-$2,4,6$-trinitrobenzene has the maximum number of $-NO_2$ groups (three),making it the most reactive towards nucleophilic substitution.

The most reactive compound towards nucleophilic substitution with an aqueous $NaOH$ is

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