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Explain what is observed (i) when a be...

Explain what is observed
(i) when a beam of light is passed through a colloidal sol.
(ii) and electrolyte, NaCI is added to hydrated ferric oxide sol.
(iii) electric curret is passed through a colloidal sol.

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MODERN PUBLICATION-SURFACE CHEMISTRY-REVISION EXERCISE (SHORT ANSWER QUESTION)
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