Class 12

Multimolecular colloids: In multimolecular colloids, the colloidal particles consists of aggregates of atoms or small molecules with diameters of less … Read more

Associated colloids: These are certain substance which when dissolved in a medium behave as normal electrolytes at low concentration but … Read more

Hardy Schulze Rule: According to Hardy Schulze’s rule, greater the valency of the active ion (coagulating or flocculating ion), greater … Read more

Coagulation: The phenomenon of the precipitation of a colloidal solution by the addition of excess of an electrolyte is called … Read more

Gels: A gel is a colloidal system in which a liquid is dispersed in a solid. Under certain conditions, the … Read more

Emulsions: Emulsions are the colloidal solutions of two immiscible liquids in which the liquid acts as the disperse phase as … Read more

Brownian movement: The colloidal particles are moving at random in a zig-zag motion. This type of motion is called Brownian … Read more

Electrophoresis: When a colloidal solution is placed in an electric field, colloidal particles move towards either positive or negative electrode … Read more

Tyndall Effect: When a strong beam of light is passed through a true solution placed in a beaker, in a … Read more

Purification of Colloidal Solution by Dialysis: The process of separating the particles of colloids from those of crystalloids by means … Read more