An organic compound ‘P’ with molecular formula $C_8{H}_{8}O$ forms an orange red ppt with 2,4-DNP gives yellow ppt. on heating with $I_2$ in presence of NaOH. It neither reduces Tollen’s or Fehling reagent nor does it decolourise  $B{r}_2$ water or Baeyer’s reagent. On drastic oxidation with chromic acid $\left(H_{2}Cr{O}_4\right)$ it gives an acid (Q) having molecular formula $C_7{H}_6{O}_2.$ 

(Use: Molar mass (in $g.mo{l}^{-1}$ ) of H,C and O as 1,12 and 16, respectively)