Different Types of Colloids
Different Types of Colloids
A colloid is a mixture that is actually heterogeneous but appear to be homogeneous as the particles are uniformly spread throughout the solution, eg :- milk, shaving cream, cheese etc. Colloidal solution are also called Colloidal sols.
Different Types of Colloids:
A colloid consists of a dispersed phase surrounded by a dispersion medium. Colloids are classified according to the state (Solid, liquid and gas) of dispersed phase and dispersion medium.
| Type of Colloid | Dispersed Phase | Dispersion Medium | Examples |
| Solid Sol | Solid | Solid | Milky glass, coloured gemstones |
| Sol | Solid | Liquid | Milk of magnesia, mud |
| Aerosol | Solid | Gas | Smoke, industry exhaust |
| Gel | Liquid | Solid | Jelly, butter, cheese |
| Emulsion | Liquid | Liquid | Milk, face cream |
| Aerosol | Liquid | Gas | Fod, cloud, mist |
| Foam | Gas | Solid | Sponge, foam, rubber |
| Foam | Gas | Liquid | Shaving cream |
In which of the following colloids the dispersing medium is solid and dispersed phase is gas? | |||
| Right Option : B | |||
| View Explanation | |||
Which of the following are correct : (a) A colloid is a mixture that is actually heterogeneous but appear to be homogeneous. (b) A colloid is a mixture that is actually homogeneous but appear to be heterogeneous. (c) Colloidal solution are also called Colloidal sols. | |||
| Right Option : C | |||
| View Explanation | |||
In which of the following colloids the dispersing medium is a gas and dispersed medium solid? | |||
| Right Option : B | |||
| View Explanation | |||
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