12 A reddish brown sol is obtained by adding small quantity

Last updated: 7/3/2023

12 A reddish brown sol is obtained by adding small quantity of FeCl3 solution to freshly prepared and well washed Fe OH 3 ppt Fixed layer and mobile layer are represented as 3 1 FeCl3 Fe 2 Fe OH 3 Fe 3 Fe OH 3 Fe 4 FeCl Fe 3 OH CI 3C1 3OH