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