Identify the solvent used in the bromination of phenol to obtain $2,4,6$-tribromophenol.

$p$-Hydroxybenzophenone upon reaction with bromine in carbon tetrachloride gives

Some compounds and their $pK_a$ values are given. Arrange them in decreasing order of their acidic strength.
$(i)$ Ethanol $(15.9)$,Phenol $(10.0)$,Cresol $(10.1)$,Water $(15.7)$
$(ii)$ $o$-Nitrophenol $(7.2)$,$m$-Nitrophenol $(8.3)$,Ethanol $(15.9)$,Water $(15.7)$,Phenol $(10.0)$

Phenols are more acidic than alcohols because

What are $X$ and $Y$ respectively in the following set of reactions?

The major product of the following reaction is: