The main product of the following reaction will be:

The most suitable method for the separation of a $1:1$ mixture of $o-$ and $p-$ nitrophenols is:

Given below are two statements:
Statement $I$: Bromination of phenol in solvent with low polarity such as $CHCl_3$ or $CS_2$ requires Lewis acid catalyst.
Statement $II$: The Lewis acid catalyst polarises the bromine to generate $Br^{+}$.
In the light of the above statements,choose the correct answer from the options given below:

What will be the major product of the given reaction?

Identify $X$ and $Y$ in the following reactions:

Arrange the following compounds in increasing order of $C-OH$ bond length: methanol,phenol,$p-$ethoxyphenol.