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Surface Chemistry
Question
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A sol is prepared by addition of excess of AgNO3 solution in KI solution. What charge is likely to develop on the colloidal particles?

Answer

Answer:

AgNO3 Solution is added to aqueous KI solution, negatively charged sol of AgI is formed this is due to selective adsorption of I- ion from the dispersion medium.

AgI + I- ---> [AgI]I-

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