Saved Bookmarks
| 1. |
(a) What is the difference between a colloidal solution and an emulsion? Give one example of each. (b) What are emulsifiers? |
|
Answer» SOLUTION : (a) In a colloidal solution, the dispersed phase is a solid and the dispersion medium is liquid. In an emulsion, both the dispersed phase and the dispersion medium are liquid. Example: Colloidal sol - cell fluids, muddy water. Emulsion - milk, cold cream (b) EMULSIFIERS: The substance which are added to stabilise the emulsions are called emulsifiers. Example: Soaps of various KINDS and lyophilic colloids (PROTEINS, gum etc.) |
|