At constant temperature, particles of solute settle down. True solutions are homogeneous solutions containing a mixture of two or more substances dissolved in a solvent. The particle size of the solvent is less than 9m or 1mm.
A simple example of a true solution is a solution of sugar in water. True solution and colloidal solution are two types of solutions, which is based on their distinct properties. True solution and colloidal solution differ in many properties or appearance of the solution. A true solution is homogeneous.