What is meant by coagulation of a colloidal solution? Describe br… - Vidyadip

Question

What is meant by coagulation of a colloidal solution? Describe briefly any three methods by which coagulation of lyophobic sols can be carried out.

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Answer

The process of settling of colloidal particles is called coagulation or precipitation of the sol.

By Electrophoresis/ The collidal particles move towards oppositely charged electrodes.
By mixing two oppositely charged sols.
By addition of electrolytes/ When excess of an electrolyte is added the colloidal particles are precipitated.

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