Arrange the following sets of compounds in order of their increasing boiling points.
I) (a) Pentonol-1: (b) Butanol-1, (c) Butanol-2, (d) Ethanol, (e) Propanol and (f Methanol 
II) (p) Pentanol - 1 , (q) n - Butane , (r ) Pentanoil and (s) ethoxyethane.

Explanation

Boiling points of Set I compounds increase in the order: `f < d < e < c,b < a`
Increasing order of boiling points of Set Il compound is : `q < s < r < p`