IUPAC name of picric acid is:

The correct statement(s) concerning the structures $\mathrm{P}, \mathrm{Q}, \mathrm{R}$ and $\mathrm{S}$ is/are

$\mathrm{X}$ (an ethyl ester) $\underset{\left(\mathrm{ii}\right) {\mathrm{H}}_3{\mathrm{O}}^{\oplus }}{\overset{\left(\mathrm{i}\right) \mathrm{Grignard}\text{'}\mathrm{s} \mathrm{reagent} \left(\mathrm{Y}\right) \left(\mathrm{execess}\right)}{\to }}$ Product  

The product(s) may be:

True statement about above reaction: