Question

For the coagulation of a negative sol, the species below, that has the highest flocculating power is:

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

Answer 1

Answer: (B)

To coagulate negative sol, cation with higher charge has higher coagulation value.