Advertisements
Advertisements
प्रश्न
What happens when an emulsion is centrifuged?
Advertisements
उत्तर
An emulsion is centrifuged because it is a colloidal dispersion. Also, it exhibits all the properties shown by colloidal sols, that is, Tyndall effect, Brownian movement, electrophoresis, etc.
APPEARS IN
संबंधित प्रश्न
Define the following terms: Associated colloids
Out of MgCl2 and AlCl3, which one is more effective in causing coagulation of negatively charged sol and why?
Define the following term : Brownian movement
Explain the term Tyndall effect.
What happens when persistent dialysis of a colloidal solution is carried out?
Answer the following question.
Why are medicines more effective in the colloidal state?
Match the statement given in Column I with the phenomenon given in Column II.
| Column I | Column II |
| (i) Dispersion medium moves in an electric field | (a) Osmosis |
| (ii) Solvent molecules pass through semi permeable membrane towards solvent side |
(b) Electrophoresis |
| (iii) Movement of charged colloidal particles under the influence of applied electric potential towards oppositely charged electrodes |
(c) Electroosmosis |
| (iv) Solvent molecules pass through semi permeable membranes towards solution side |
(d) Reverse osmosis |
State the Hardy-Schulze rule.
Why a negatively charged sol is obtained when AgNO3 solution is added to KI solution?
Which of the following is a correct statement?
