Chemistry - Carbonyl compounds Question with Solution | TestHub

Reaction of iso-propyl benzene with ${\mathrm{O}}_2$ followed by the treatment with ${\mathrm{H}}_3{\mathrm{O}}^{+}$forms phenol and a by-product $\mathbf{P}$. Reaction of $\mathbf{P}$ with 3 equivalents of ${\mathrm{Cl}}_2$ gives compound $\mathbf{Q}$. Treatment of $\mathbf{Q}$ with $\mathrm{Ca}(\mathrm{OH}{)}_2$ produces compound $\mathbf{R}$ and calcium salt $\mathbf{S}$.

The correct statement(s) regarding P , Q , R and S is(are)