Oil and vinegar are used to make mayonnaise. A stable emulsion necessitates the presence of an emulsifying agent. A liquid’s colloidal dispersion, whether a liquid or a solid, is known as an emulsion. If you have any queries on this topic, please write in the comment box below.Emulsions, or colloids, are made up of butter and mayonnaise. No such electrical properties are exhibited.Įxamples of true solutions are the aqueous solutions of NaCl, CuSO 4 sugar etc.Įxamples of colloidal solutions are gum in water, a solution of NaCl in alcohol etc.Įxamples of suspension are muddy river water, an aqueous solution of PbSO 4, an Aqueous Solution of CaSO 4 etc. No electrical properties such as electro-osmosis, cataphoresis, and coagulation are observed.Ĭolloidal solutions exhibit these electrical properties to a great extent. The phenomenon of adsorption is much less marked. The colloidal solution passes the remarkable property of adsorption. The solutions do not possess the property of adsorption (a surface phenomenon). The light path is visible due to the scattering of light when a strong beam of light is passed through the colloidal solution (Tynotall effect). When a strong beam of light is through on a true solution, the path of light is not illuminated. The osmotic pressure exerted by the solution is relatively more.Ĭolloidal solutions exert very low osmotic pressure. The suspended particles are retained even lay ordinary filter papers. The colloidal particles can also pass through ordinary filter papers called ultrafilters. The solute particles in true solution can pass through even fine filter papers. The suspension particles cannot pass through the parchment membrane. The particles of a colloidal solution can’t pass through a parchment membrane. The particles of the solute in a true can pass through a parchment membrane. The suspension is completely a heterogeneous mixture. The particle size is above 100 mm in diameter.Ī true solution forms a homogeneous mixture. The particle size is 1-100 mm in diameter. The particle size is below 1 mm in diameter.

They sometimes settle at the bottom of the container when the mixture is allowed to stand.

The particles are so big that they are visible even to the naked eye. However, they can be made visible through a powerful microscope called an ultramicroscope. The molecules of the dispersed phase cannot be seen with the naked eye. The solute particles in a true solution are not visible, even with a powerful microscope.

Suspension or solution