Chemistry - Surface Chemistry Question with Solution | TestHub

The coagulation value in millimoles per litre of electrolytes used for the coagulation of$\mathrm{A}{\mathrm{s}}_2{\mathrm{S}}_3$are as below
$\mathrm{I}.$NaCl = 52
$\mathrm{I}\mathrm{I}.$KCl = 51
$\mathrm{I}\mathrm{I}\mathrm{I}.$$\mathrm{B}\mathrm{a}\mathrm{C}{\mathrm{l}}_2=0.69$
$\mathrm{I}\mathrm{V}.$$\mathrm{M}\mathrm{g}\mathrm{S}{\mathrm{O}}_4=0.22$
The correct order of their flocculating power is