Question

Arrange the following compounds in increasing order of their boiling points.
, (ii) `CH_(3)CH_(2)CH_(2)CH_(2)Br`
(iii) `H_(3)C-underset(Br)underset(|)overset(CH_(3))underset(|)C-CH_(3)`
A. `(ii)lt(i)lt(iii)`
B. `(iii)lt(ii)lt(i)`
C. `(iii)lt(i)lt(ii)`
D. `(iii)lt(ii)lt(i)`

Answer 1

Correct Answer - C
Boiling point of a compound depends upon the surface area. Higher the surface area higher will be the boiling point of a compound. Surface area decreases with increase in branching. If the compound has branching so its boiling point will be minimum.
Thus, the increasing order of their boiling points