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प्रश्न
Explain what is observed when a beam of light is passed through a colloidal sol.
Explain the observation likely to be made when a beam of light is allowed to pass through a colloidal solution.
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उत्तर
When a beam of light is passed through a colloidal solution, then scattering of light is observed. This is known as the Tyndall effect. This scattering of light illuminates the path of the beam in the colloidal solution.
संबंधित प्रश्न
Define the following terms: Associated colloids
Define the following term : Brownian movement
Explain the term Electrophoresis
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Answer the following question.
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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) Presence of equal and similar charges on colloidal particles provides stability to the colloids.
(iii) Any amount of dispersed liquid can be added to emulsion without destabilising it.
(iv) Brownian movement stabilises sols.
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Gold number is associated with:-
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Coagulation
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