Question -
Answer -
(i) Physical statesof components
(ii) Nature ofdispersion medium and
(iii) Interactionbetween dispersed phase and dispersion medium?
Answer
Colloids can be classified onvarious bases:
(i) On thebasis of the physical state of the components (by components we mean thedispersed phase and dispersion medium). Depending on whether the components aresolids, liquids, or gases, we can have eight types of colloids.
(ii) On thebasis of the dispersion medium, sols can be divided as:
| Dispersion medium | Name of sol |
| Water | Aquasol or hydrosol |
| Alcohol | Alcosol |
| Benzene | Benzosol |
| Gases | Aerosol |
(iii) Onthe basis of the nature of the interaction between the dispersed phase anddispersion medium, the colloids can be classified as lyophilic (solventattracting) and lyophobic (solvent repelling).