Define the following :
(a) Associated colloids
(b) Electrophoresis
(c) Zeta potential
(a) Associated colloids :
Associated colloids are substances which act as electrolytes at low concentration but at high concentration associate with each other to particles having size in colloidal range.
(b) Electrophoresis :
Electrophoresis refers to migration of colloidal particles towards the oppositely charged electrode in the presence of electric field.
(c) Zeta potential :
Zeta potential or electokinetic potential is the potential difference between fixed layer and the diffused layer of opposite charges.