![]() ![]() 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. ![]()
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