When KI solution is added to AgNO3 solution, then:
A. Ag+ ions from dispersion medium get adsorbed on AgI.
B. Positively charged sol is formed.
C. Negatively charged sol is formed.
D. K+ ions of dispersed phase get adsorbed on AgI.
Choose the correct answer from the options of given below:
Answer & explanation
Correct answer: option 4
When KI solution is added to AgNO3 solution, then a positive sol of AgI will be formed.
This happens due to preferential adsorption of Ag+ ions from dispersion medium on the precipitate of silver iodide AgI.