Verified Solution • 2025–26 Session
moderate
QJEEM21Ch1103: JEE Main 2021 Chemistry - Class 12 JEEM21Ch1103 Solution: The sol given below with negatively charged colloidal particles …
The sol given below with negatively charged colloidal particles is :
Multiple Choice Options
- A FeCl3 added to hot water
- B KI added to AgNO3 solution
- C AgNO3 added to KI solution
- D Al2O3.xH2O in water
Step-by-Step Verified Solution
When AgNO3 is added to KI,
Iodide ion gets adsorbed on the surface of AgI. This will result in formation of negatively charged colloids.
When KI is added to AgNO3 following reaction takes place.
Silver cation gets adsorbed on surface of AgI, resulting in formation of positively charged colloids.