Hydrocarbon a, c10h14 absorbs 3 equiv. of hydrogen to give b, c10h20 when hydrogenated over a pd/c catalyst. treatment of a with aqueous h2so4 and hg(ii) gives a single ketone, c, c10h16o. oxidation of a with kmno4 gives co2 and the tricarboxylic acid d shown below. propose a structure fora.