10.5 A hydrocarbon C5H10 does not react with chlorine in dark but gives a single monochloro compound C5H9Cl in bright sunlight. Identify the hydrocarbon.
We are given the formula C5H10 which satisfies the general formula CnH2n it can be either an alkene or of cycloalkane. Since the hydrocarbon doesn't react with chlorine in the dark thus it cannot be alkene. So the hydrocarbon is cyclopentane.