A hydrocarbon C5H10 does not react with chlorine in dark but gives a single monochloro compound C5H9Cl in bright sunlight. Identify the hydrocarbon.
The hydrocarbon can be either a cycloalkane or an alkene since it does n’t react with Cl2 in the dark, it can not be an alkene but must be cycloalkane since the cycloalkane reacts with Cl2 in the presence of sunlight to give a single monochloro derivative. It shows that it is cyclic hydrocarbon in which hall the hydrogen atoms are identical. Thus, it can be only cyclopentane.
