Which of the following ions exhibits the maxi | vedclass

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(D) According to the Hardy-Schulze rule,the coagulating power of an ion is directly proportional to the magnitude of its charge.For a positively charg

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$\left[Fe(CN)_6\right]^{4-}$

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(D) According to the Hardy-Schulze rule,the coagulating power of an ion is directly proportional to the magnitude of its charge.For a positively charged sol,the coagulating power depends on the valency of the anion.The higher the negative charge on the anion,the greater is its coagulating power.The charges on the given anions are:$A: SO_4^{2-}$ (charge $-2$)$B: Cl^{-}$ (charge $-1$)$C: PO_4^{3-}$ (charge $-3$)$D: [Fe(CN)_6]^{4-}$ (charge $-4$)Since the ion $\left[Fe(CN)_6\right]^{4-}$ has the highest magnitude of negative charge $(-4)$,it exhibits the maximum power of coagulation for a positively charged sol.

Which of the following ions exhibits the maximum power of coagulation for a positively charged sol?

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