- Multi-molecular colloids are formed by the aggregation of molecules to form particles in the colloidal range.
- These colloids are relatively smaller in size compared to macromolecular colloids.
- Example: Gold sol, where gold particles are dispersed in a solvent.



- Macromolecular colloids are formed by the aggregation of large molecules or polymers to form colloidal particles.
- These colloids are larger in size compared to multi-molecular colloids.
- Example: Starch solution, where starch molecules form colloidal particles in water.



- Multi-molecular and macromolecular colloids differ from associated colloids in terms of the nature of the particles involved.
- Multi-molecular and macromolecular colloids are formed by the physical aggregation of individual molecules or polymers, whereas associated colloids are formed by the association of molecules through weak intermolecular forces like hydrogen bonding.
- Multi-molecular and macromolecular colloids have stable particles that do not dissociate easily, while associated colloids can dissociate into individual molecules under certain conditions.
- The size of particles in multi-molecular and macromolecular colloids is relatively larger compared to associated colloids, which have smaller particle sizes.
- Examples of associated colloids include micelles formed by the aggregation of surfactant molecules in water.

In conclusion, multi-molecular and macromolecular colloids are distinguished by the size and nature of particles involved, while associated colloids are characterized by the weak intermolecular forces that hold the particles together. Each type of colloid has unique properties and applications in various fields.