JEE Advanced 2024 Chemistry question on Alcohols Phenols and Ethers

Reaction of $iso$-propylbenzene with $\mathrm{O_2}$ followed by the treatment with $\mathrm{H_3O^+}$ 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 $\mathrm{Ca(OH)_2}$ produces compound $\mathbf{R}$ and calcium salt $\mathbf{S}$. The correct statement(s) regarding $\mathbf{P}$, $\mathbf{Q}$, $\mathbf{R}$ and $\mathbf{S}$ is(are)

1. A.
   Reaction of $\mathbf{P}$ with $\mathbf{R}$ in the presence of KOH followed by acidification gives $\mathrm{(HO)(CCl_3)C(CH_3)_2}$ [structure shown: a carbon bearing HO and CCl3 attached to a C(CH3)2 group]
2. B.
   Reaction of $\mathbf{R}$ with $\mathrm{O_2}$ in the presence of light gives phosgene gas
3. C.
   $\mathbf{Q}$ reacts with aqueous NaOH to produce $\mathrm{Cl_3CCH_2OH}$ and $\mathrm{Cl_3CCOONa}$
4. D.
   $\mathbf{S}$ on heating gives $\mathbf{P}$

[JEE Advanced 2024 · Paper 1]