We have solutions like:
1. True Solution – When solute particles dissolve such that they are able to get in between the solvent particles, the solution is said to be true. These particles cannot be seen with naked eyes. E.g. NaNO3
2. False Solutions – The individual solute particles are larger than the particles of the true solution, but not large enough to be seen by the naked eyes. E.g. starch etc.
3. Suspension – Here, the dissolved particles of the solute can be seen with the aid of naked eyes. It is a heterogeneous mixture. E.g. smoke, cloud etc.