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Coagulation

Arrange the f...

Question

Arrange the following ions according to their flocculation power in the coagulation of negative sol.
$N a^{+}, A l^{+ 3}, B a^{+ 2}$

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Solution

The flocculation power in the coagulation of negative sol decreases in the order $A l^{3 +} > B a^{2 +} > N a^{+}$ .
The flocculation power of cation decreases with decrease in the valence of cation.

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