Solution:
Because solid particles are so small, a solution must be completely mixed together.
Single molecules or ions spread the solute particles in the solvent.
The dispersed particles’ diameters range from 1 A to 10A.
Example: bleach and saltwater
Suspension:
Suspension does not completely mix the particles together, and if it does, the particles may become unmixed and fall to the bottom.
Solutes in suspension or dispersed particles are greater than solutes in solution.
These particles have a diameter of 2000 A or greater.
Example: Sand in water, or soot in the air
Colloids:
Colloids solutions and suspensions are a middle ground between genuine solutions and suspensions.
The diameter of dispersed particles in colloid solution fluid ranges from 10 A to 2000 A.
Example: Milk and butter.
Final Answer :
Suspension is a mixture of substances that is heterogeneous in composition. Colloidal solution can be either homogeneous or heterogeneous. The size of the particles is quite huge.