AP EAMCET Engineering 21 Apr 2019 Shift 1 Paper

The boiling point of a liquid is that temperature at which its vapor pressure becomes equal to the atmospheric pressure. Weaker is the attractive force between the molecules of given species, more is its volatile nature and smaller is its boiling point.
Attractive force ∝‌

1

‌ Volatile nature ‌

Volatile nature ∝ Vapour pressure
And,
Temperature for boiling point ∝‌

1

‌ Volatile nature ‌

Now draw perpendicular on x-axis from point B,A, and C and we have TC>TA>TB

Therefore,
A=CCl4
B=C2H5OC2H5
C=H2O