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Solution


Q.

Which of the following is suitable to synthesize chlorobenzene             [2022]
1 Benzene, Cl2, anhydrous AlCl3  
2 Phenol, NaNO2, HCl, CuCl  
3  
4  

Ans.

(1)

Arenes react with halogens in the presence of a Lewis acid like anhydrous FeCl3, FeBr3 or AlCl3 to yield haloarenes, e.g.,