Arrange each set of compounds in order of increasing boiling points: (ii) 1-Chloropropane, isopropylchloride, 1-chlorobutane.

Arrange each set of compounds in order of increasing boiling points:

1.	Arrange each set of compounds in order of increasing boiling points: (ii) 1-Chloropropane, isopropylchloride, 1-chlorobutane.
Answer» SOLUTION :(i). The boiling points of organic compounds are linked with the van der Waal's forces of attraction which depend upoon the MOLECULAR size. In the present CASE, all the compounds contains oly one CARBON atom. The molecular size depends upon size of the halogen atom and also upon the number of halogen atoms present in different molecules. the increasing order of boiling points is: `CH_(3)Cl` (chloromethane) `ltCH_(3)Br` (bromomethane) `lt CH_(2)Br_(2)` (dibromomethane) `lt CHBr_(3)` (Bromoform) (ii). The sae criteria is followed in this case. We all know the the branching of the carbon atom chain decreases the size of the isomer and this decreases its boiling point as compared to straight chain isomer. the increasing order of boiling points is: `(CH_(3))_(2)CHCl` (isopropylchloride or 2-chloropropane) `lt ClCH_(2)CH_(2)CH_(3)` (1-chloropropane) `lt ClCH_(2)CH_(2)CH_(2)CH_(3)` (1-chlorobutane)