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  • Which of the following electrolytes is most effective in the coagulation of gold solution A) NaNO3 B) K4[Fe(CN)6 C) Na3PO4 D) MgCl2

Which of the following electrolytes is most effective in the coagulation of gold solution A) NaNO3 B) K4[Fe(CN)6 C) Na3PO4 D) MgCl2

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Most effective in the coagulation of gold solution is K4[Fe(CN)6 

Posted by

Sumit Saini

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It must be K4[Fe(CN)6]. Because 1 mole of this produces 4 K+ ions in solution. Although Mg2+ ion has more coagulating power than K+ ion, still in this case, 1 mole of MgCl2 can produce only one mole of Mg2+ ion, which has less magnitude of +ve charges than 4 K+ ions.

Posted by

Pradeep Kumar Panigrahi

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