Question:medium

Which of the following methods are used for the coagulation of lyophobic colloidal solutions?
I. Cooling
II. Electrophoresis
III. Mixing two oppositely charged sols
IV. Dialysis for short duration

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Coagulation occurs by neutralization of charge on colloidal particles.

Updated On: Jun 20, 2026

I, II
II, III
III, IV
II, IV

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The Correct Option is B

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