Which of the following anions has the lowest | vedclass

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(D) According to the $Schulze-Hardy$ rule,the coagulating power of an ion is directly proportional to its valency (charge) for the precipitation of a

Vedclass · Accepted Answer

$Cl^{-}$

Vedclass · Answer

(D) According to the $Schulze-Hardy$ rule,the coagulating power of an ion is directly proportional to its valency (charge) for the precipitation of a sol.For a positive sol,the coagulating power depends on the magnitude of the negative charge of the anion.The order of coagulating power is $\left[Fe(CN)_6\right]^{4-} > PO_4^{3-} > SO_4^{2-} > Cl^{-}$.Therefore,the anion with the lowest valency,$Cl^{-}$,has the lowest coagulating power.

Which of the following anions has the lowest coagulating power for the precipitation of a positive sol?

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