The electrolyte having maximum flocculation value for AgI/Ag+ sol is

Question

The electrolyte having maximum flocculation value for AgI/Ag+ sol is (A) NaCl (B) Na2S (C) Na2SO4 (D) Na3PO4

Tardigrade Admin · Accepted Answer

According to Hardy - Schulze rule

Flocculation value

(F V) \propto \frac{1}{Coagulation power}

Coagulation value

Since, coagulating power is direct us related to the valencies of coagulating ion.

Thus,

F V \propto \frac{1}{valency of flocculating ion electrolyte}

Hence, greater the valency of coagulating ion, lower will be the flocculating value and vice versa.

As for the given positively charged sol, negative ion would be required for coagulation thus, for the given anions the coagulation power will be

P O_{4}^{3 -} < S O_{4}^{2 -} = S^{2 -} < C l^{-}

or flocculating but coagulating value would be in an order of :

C l^{-} > S^{2 -} = S O_{4}^{2 -} > P O_{4}^{3 -}

Hence,

N a Cl

will have the maximum flocculating value for the given positively charged sol.

Q. The electrolyte having maximum flocculation value for $A g I / A g^{+}$ sol is

$N a Cl$

$N a_{2} S$

$N a_{2} S O_{4}$

$N a_{3} P O_{4}$

Q. The electrolyte having maximum flocculation value for AgI/Ag+ sol is

NaCl

Na2​S

Na2​SO4​

Na3​PO4​

Q. The electrolyte having maximum flocculation value for $A g I / A g^{+}$ sol is

$N a Cl$

$N a_{2} S$

$N a_{2} S O_{4}$

$N a_{3} P O_{4}$