A) Colloidal particles in lyophobic sols can be precipiated by electrophoresis.
B) Brownian motion in colloidal solution is faster the viscosity of the solution is very high.
C) Colloidal medicines are more effective because they have small surface area.
D) Addition of alum to water makes it unfit for drinking.
Correct Answer: A
Solution :
In electrophoresis precipitation occurs at the electrode which is oppositely charged therefore is correct.
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