Chemistry - Surface Chemistry Question with Solution | TestHub

$1.$Lyophilic colloids may migrate in either direction (or) may not migrate at all where as lyophobic particles migrate in only one direction in electric field.

$2.$Brownian movement is faster if viscosity of medium is low.

$3.$Colloidal medicines are more effective due to more surface area.

$4.$Addition of alum removes impurities from water due to coagulation.