Question

Which of the following has highest coagulating power for $A{s}_2{S}_3$ sol?

• A. $S{O}_4^{2-}$
• B. $A{l}^{3+}$
• C. $P{O}_4^{3-}$
• D. $K^{+}$

Answer 1

The correct option is B $A{l}^{3+}$

Option $B$ is correct because the given sol is a negative sol and hence coagulating power will highest for the that species which possess highest charge .