Identify the property of colloidal solutions so that colloidal particles move freely towards respective electrodes under an applied electrical potential.

Step-by-step solution

Electrophoresis describes the movement of charged colloidal particles toward oppositely charged electrodes under an applied electric potential. Colloidal particles carry surface charges, causing migration in an electric field. Brownian motion involves random thermal movement without directional bias. Electroosmosis concerns fluid movement relative to fixed charged surfaces. Dialysis removes dissolved impurities through selective diffusion. The described behavior aligns precisely with electrophoresis.