Arrange the following in decreasing order of their boiling points (A) n-butane , (B)-2-methylbutane , (C ) n-pentane, (D)2,2-dimethylpropane

Arrange the following in decreasing order of their boiling points (A)

1.	Arrange the following in decreasing order of their boiling points (A) n-butane , (B)-2-methylbutane , (C ) n-pentane, (D)2,2-dimethylpropane
Answer» A GT B gt C gt D B gt C gt D gt A D gt C gtB gt A C gt B gt D gt A Solution :Boiling POINTS decrease with INCREASE in branching and with decrease in total number of carbon atoms. Thus, boiling points decrease in the order : C (n-pentane ) gt B (2-methylbutane ) gt D (2,2-dimethylbuane ) gt n-butane (A)