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प्रश्न
Define the following terms: Associated colloids
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उत्तर
Substances which at low concentrations behave as normal strong electrolytes but at higher concentrations exhibit colloidal behaviour because of the formation of aggregates or micelles are known as associated colloids.
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संबंधित प्रश्न
Define the following term:
Zeta potential
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A colloidal sol is prepared by the given method in the figure. What is the charge on hydrated ferric oxide colloidal particles formed in the test tube? How is the solution represented?
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(ii) Lyophilic sol is protected.
(iii) Film of lyophilic sol is formed over lyophobic sol.
(iv) Film of lyophobic sol is formed over lyophilic sol.
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- The diameter of the colloidal particles is comparable to the wavelength of light used.
- The diameter of the colloidal particles is much smaller than the wavelength of light used.
- The diameter of the colloidal particles is much larger than the wavelength of light used.
- The refractive indices of the dispersed phase and the dispersion medium are comparable.
- The dispersed phase has a very different refractive index from the dispersion medium.
Choose the most appropriate conditions from the options given below:
