| Suspensions | Colloids |
| 1. Suspensions are heterogeneous mixtures. | 1. Colloids are heterogeneous mixtures. |
| 2. The particles of suspensions can be seen with naked eyes. | 2. The size of particles of a colloid are too small to be individually seen by naked eyes. |
| 3. The particles of a suspension scatter a beam of light passing through it and make its path visible. | 3. The particles of colloids are big enough to scatter a of light passing through it which makes its path visible. |
| 4. The solute particles settle down when suspension is kept undisturbed. When the particles settle down it does not scatter light any more. | 4. The particles don’t settle down when the colloid left undisturbed, i.e., colloid is quite stable. |
| 5. Suspension is unstable. The components can be separated from the mixture by the process | 5. The components cannot be separated from the mixture by the process of filtration or decantation Centrifugation technique is used in separation. |
