JEE Main Chemistry question

Which represents a nucleophilic aromatic substitution reaction?

(A)Reaction of benzene with Cl₂ in sunlight
(B)Benzyl bromide hydrolysis
(C)Reaction of NaOH with 1-fluoro-2,4-dinitrobenzeneCorrect
(D)Sulphonation of benzene

Answer: (C)

Solution

The two strongly electron-withdrawing nitro groups activate the ring toward attack by the hydroxide nucleophile at the carbon bearing fluorine, proceeding through a Meisenheimer complex —

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Question ID VK-139302