Question

What is called a dispersion phase?

(a) It is the main layer

(b) It is the secondary layer in which the colloidal particles are dispersed

(c) It is the secondary layer

(d) It is the basic colloidal layer

I have been asked this question in quiz.

Question is taken from Colloids in division Surface Chemistry of Engineering Chemistry II

Answer 1

The correct choice is (b) It is the secondary layer in which the colloidal particles are dispersed

Easiest explanation: Since the colloidal particles require a layer in which it has to be dispersed, the dispersion phase is considered to be a second layer. The dispersion phase is generally a solvent.