Question

SECTION -
Read the given passage and answer the questions 1 to 5 that follow : 1*5 = 5
Colloidal particles always carry an electric charge which may be
either positive or negative. For example, when AgNO3 solution is added to
Kl 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 thethod by which coagulation of lyophobic sol can be carried out.
5. Out of ki or K2504, which electrolyte is better in the coagulation of positive sol?​

Answer 1

Answer:

The origin of the charge on the sol particles in me cases is due to the preferential ... 1 to 5 that follow: Colloidal particles always carry an electric charge.

Explanation:

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