Across
- 3. this is another name for lyophobic colloids
- 6. It is the process of converting a freshly prepared precipitate into a colloid.
- 8. A colloid in which both dispersed phase and dispersion medium are liquids.
- 10. the process of hardening of leather by by treating animal hide with tannin
- 12. this is an example of a colloid classified as foam
- 14. this type of adsorption has high enthalpy of adsorption
- 16. the phenomenon observed by Robert Brown
- 17. the substance on whose surface adsorption takes place
- 19. this occurs when two oppositely charged colloids are mixed
- 20. in this method an electric arc is struck between the electrodes whose colloid is to be prepared
- 21. the scientist who studied the effect of pressure on extent of adsorption
- 22. these are solvent loving colloids
Down
- 1. a solution of soap at high concentration behaves as a ------ colloid
- 2. the potential difference between the fixed layer and diffused layer of opposite charges
- 4. an example of a substance which adsorbs moisture
- 5. the minimum concentration of an electrolyte in millimloes/litre required to cause coagulation
- 7. the optical property displayed by colloids
- 8. the electrical property displayed by colloids
- 9. These are filter papers impregnated with collodion.
- 11. physisorption results in these types of layers
- 13. these devices are used by miners working in coal mines to remove poisonous gases
- 15. These valencies give rise to surface phenomenon
- 18. it is a process of purifying colloids