Question

Statement 1: Emulsion of water and oil is unstable and separates in two layers. 

Statement 2: It is stabilized by added excess electrolytes. 

(a) Both S₁ and S₂ are correct. 

(b) S₁ is correct but S₂ is incorrect.

(c) S₁ is incorrect but S₂ is correct.

(d) Both S₁ and S₂ are incorrect.

Answer 1

(b) S₁ is correct but S₂ is incorrect.

Emulsions of oil in water are unstable and sometimes they separate into two layers on standing. For stabilization of an emulsion, a third component called emulsifying agent is usually added.