Phenol reacts with bromine in carbon disulphide at low temperature to give

Options

A. `2,4,6-`tribromophenol
B. `m-`bromophenol
C. `o-` and `p-`bromophenol
D. `p-`bromophenol

Answer

C

Explanation

Reaction can be limited to monohalogenation if halogenation is carried out in non polar solvant like `CS_(2)`, `C Cl_(4)` or in a solvent of low polarity such as `CHCl_(3)` at a low temperature

In nonpolar solvents or solvents of low polarity phenol does not ionize to yield phenoxide ion. Therefore, electophile `Br^(+)` has no option but to attack the less active benzene ring of phenol.