Arrange the given set of compounds in order of increasing boiling point: I. 1-chloropropane II. Isopropyl chloride III. 1-chlorobutane

Alkyl halides containing the same halide, the boiling point increases with an increase in the alkyl chain. So 1-chlorobutane is having a higher boiling point than 1-chloropropane. Also, the boiling point decreases with an increase in branching in the chain. So the boiling point of 1-chloropropane is greater than isopropyl chloride. Hence the correct order of boiling points is: Isopropylchloride<1−chloropropane<1−chlorobutane. Hence option C is correct.