If compound $X$, $\text{C}_7\text{H}_{14}\text{O}_2$, is heated under reflux with excess acidified potassium dichromate(VI), compound $Y$ is formed. Compound $Y$ gives hydrogen gas with sodium metal and produces orange crystals with 2,4-DNPH reagent. What might $X$ be?
Chemistry 9701 · AS & A Level · Carbonyl compounds