What is the correct sequence of the increasing coagulation value of the following electrolyte for the coagulation of ferric hydroxide solution?(I) Na3PO4 (II) KCI (III) K2SO4 (IV) K4[Fe(CN)6]
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a
IV> I > 1lI > II
b
II > III > I > IV
c
I > II > III > IV
d
IV > III > II > I
answer is B.
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Detailed Solution
Ferric hydroxide solution have positive charge. So order of coagulation valueKCl>K2SO4>Na3PO4>K4Fe(CN)6Charge ↑ coagutation value ↓,