Fluorobenzene (C_6H_5F) can be synthesized in the laboratory

JEE Main 2006 Chemistry question

Fluorobenzene can be synthesized in the laboratory

(1)by heating phenol with HF and KF
(2)from aniline by diazotisation followed by heating the diazonium salt with Correct
(3)by direct fluorination of benzene with gas
(4)by reacting bromobenzene with NaF solution

Answer: (2)

The Balz–Schiemann reaction: aniline → benzenediazonium chloride → with gives benzenediazonium fluoroborate, which on heating gives fluorobenzene,

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Question ID VK-038837