Saved Bookmarks
| 1. |
How are the following colloids different from each other in respect of dispersion medium and dispersed phase ? Give one example of each type. (i) An aerosol (ii) A hydrosol (iii) An emulsion |
|
Answer» SOLUTION :(i) An aerosol : It is a colloidal SYSTEM in which the dispersion medium is a gas. The dispersed PHASE could be solid or LIQUID. An example of solid in gas is smoke while an example of liquid in gas is fog or mist. (ii) A hydrosol : It is a colloidal system in which the dispersion medium is water. An example of hydrosol is muddy water. (iii) An emulsion : An emulsion is a colloidal solution of a liquid in another liquid i.e., both the dispersed phase and the dispersion medium are liquids. Milk is an example of emulsion in which the fat is dispersed phase and water is dispersion medium. |
|