How is phenol prepared from chlorobenzene by Dow’s process?

In the following reaction

$\mathrm{X}$ and $\mathrm{Y},$ respectively are:

The above reaction requires which of the following reaction conditions?

The products $\mathrm{X}$ and $\mathrm{Z}$ in the following reaction sequence are

What is $\mathrm{Z}$ in the above sequence of reactions?

The correct statement(s) about of the following reaction sequence is(are)

$\mathrm{Cumene}\left({\mathrm{C}}_9{\mathrm{H}}_{12}\right)\underset{\left(\mathrm{ii}\right) {\mathrm{H}}_3{\mathrm{O}}^{+}}{\overset{\left(\mathrm{i}\right) {\mathrm{O}}_2}{\to }}\mathrm{P}\stackrel{{\mathrm{CHCl}}_3/\mathrm{NaOH}}{\to }\mathrm{Q}\left(\mathrm{major}\right)+\mathrm{R}\left(\mathrm{minor}\right)$

$\mathrm{Q}\underset{{\mathrm{PhCH}}_2\mathrm{Br}}{\overset{\mathrm{NaOH}}{\to }}\mathrm{S}$

Which of the following product(s) is/are possible in the reaction?