Which of the following has the minimum floccu | vedclass

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(D) According to the $Hardy-Schulze$ rule,the coagulating power of an electrolyte increases with the increase in the magnitude of the charge on the io

Vedclass · Accepted Answer

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

Vedclass · Answer

(D) According to the $Hardy-Schulze$ rule,the coagulating power of an electrolyte increases with the increase in the magnitude of the charge on the ion used for coagulation.For a positively charged sol,the coagulating power depends on the charge of the anion.The order of coagulating power is: $[Fe(CN)_6]^{4-} > PO_4^{3-} > SO_4^{2-} > Cl^{-}$.Since the flocculation value is inversely proportional to the coagulating power,the ion with the highest charge will have the minimum flocculation value.Therefore,$[Fe(CN)_6]^{4-}$ has the minimum flocculation value.

Which of the following has the minimum flocculation value for a positively charged sol?

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