Alcohol Phenols And Ethers

An organic compound \([\mathrm{A}]\left(\mathrm{C}_5 \mathrm{H}_{12} \mathrm{O}\right)\), on reaction with conc. \(\mathrm{H}_2 \mathrm{SO}_4\) at \(443 \mathrm{~K}\) gives \([\mathrm{B}]\) as one of the products. Compound [B] undergoes further reaction with \(\mathrm{O}_3\) and \(\mathrm{Zn} / \mathrm{H}_2 \mathrm{O}\) to give Propanone and Ethanal as products. Identify compound [A]