Aniline reacts with phosgene and KOH to form:
Consider the following phenols as shown in the figure. The decreasing order of acidity of the above phenols is:
\[ \text{Ph–CH(OH)–CHO} \xrightarrow[\text{H}_2\text{O}]{\text{HO}^-} Q \] P and Q are isomers. Identify Q.