A hydrocarbon (X) of the formula C₆H₁₂ does not react with bromine water but reacts with bromine in presence of light, forming compound (Y). Compound (Y) on treatment with alc. KOH gives compound [Z] which on ozonolysis gives (T) of the formula C₆H₁₀O₂. Compound (T) reduces Tollen’s reagent and gives compound (W). (W) gives iodoform test and produces compound (U) which when heated with P₂O₅ forms a cyclic anhydride (V).