question_answer

Fluorobenzene\[({{C}_{6}}{{H}_{5}}F)\]can be synthesized in the laboratory     AIEEE  Solved  Paper-2006

A) by heating phenol with HF and KF

B) from aniline by diazotisation followed by heating the diazonium salt with \[HB{{F}_{4}}\]

C)  by direct fluorination of benzene with \[{{F}_{2}}\] gas

D)  by reacting bromobenzene with NaF solution

Correct Answer: B

Solution :

This reaction is called Balz-Schielmann reaction.