Which of the following processes occur during fractional distillation of petroleum?

A. Condensation and diffusion
B. Diffusion and evaporation
C. Diffusion and sublimation
D. Evaporation and condensation

Correct Answer:

Option D – Evaporation and condensation

Explanation

Fractional distillation is a series of processes of evaporation and condensation at a number of points in a vertical column.