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What happens in the following activities and why? (i) An electrolyte is added to a hydrated ferric oxide sol in water.(ii) A beam of light is passed through a colloidal solution.(iii) An electric current is passed through a colloidal solution. |
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Answer» (i) The positively charged colloidal particles of Fe(OH)3 get coagulated by the negatively charged ions provided by electrolyte. |
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