Question

A hydrocarbon C₅H₁₀ does not react with chlorine in dark but gives a single monochloro compound C₅H₉Cl in bright sunlight. Identify the hydrocarbon.

Answer 1

The  molecular  formula of hydrocarbon is C5H10 thatbelongs to a group with a common formula known as CnH2n.

Hence, it may be cycloalkane or alkene.

The hydrocarbon never react with chlorine in dark, it cannot be an alkene.

Hence it is a cycloalkane.

Also, hydrocarbon provides one monochloro compound named C5H9Cl when reacting with the chlorine compound in extremely bright sunlight.

Answer 2

The  molecular  formula of hydrocarbon is C5H10 thatbelongs to a group with a common formula known as CnH2n.

Hence, it may be cycloalkane or alkene.

The hydrocarbon never react with chlorine in dark, it cannot be an alkene.

Hence it is a cycloalkane

and also it haves 5C atoms so it can also be said as cyclopentane .