Explain what is observed (i) when a beam of light is passed through a colloidal sol. (ii) an electrolyte, NaCI is add

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Q 1971491326.     Explain what is observed
(i) when a beam of light is passed through a
colloidal sol.
(ii) an electrolyte, NaCI is added to hydrated
ferric oxide sol.
(iii) electric current is passed through a
colloidal sol.

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(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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