McqMate
| Q. |
A substance which readily forms colloidal solution in contact with water is called – |
| A. | Extrinsic colloid |
| B. | Associated colloid |
| C. | Hydrophobic colloid |
| D. | Hydrophilic colloid |
| Answer» D. Hydrophilic colloid | |
|
Explanation: A colloidal dispersion in which the dispersed particles are more or less liquid and exert a certain attraction on and absorb a. certain quantity of the fluid in which they are suspended is called as hydrophilic colloid. Molecules of a hydrophilic colloid have an affinity for water molecules and when dispersed in water become hydrated. Hydrated colloids swell and increase the viscosity of the system,thereby improving stability by reducing the interaction between particles and their tendency to settle. They may also possess a net surface electrical charge. |
|
View all MCQs in
ChemistryNo comments yet