Question

Read the given passage and answer the questions 1 to 5 that follow : 1 x 5 = 5

Colloidal particles always carry an electric charge which may be

either positive or negative. For example, when AgNO3 solution is added to

KI solution, a negatively charged colloidal sol is obtained. The presence of

equal and similar charges on colloidal particles provide stability to the

colloidal sol and if, somehow, charge is removed, coagulation of sol occurs.

Lyophobic sols are readily coagulated as compare to lyophilic sols.

1. What is the reason for the charge on sol particles ?

2. Why the presence of equal and similar charges on colloidal particles provide

stability ?

3. Why a negatively charged sol is obtained on adding AgNO3 solution to KI

solution ?

4. Name one method by which coagulation of lyophobic sol can be carried out.

5. Out of KI or K2SO4, which electrolyte is better in the coagulation of positive sol ?​

Answer 1

Answer:

I do no answer for this question