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Q. The coagulation value in millimoles per litre of electrolytes used for the coagulation of $As_{2}S_{3}$ are as below
$I.$ NaCl = 52
$II.$ KCl = 51
$III.$ $BaCl_{2}=0.69$
$IV.$ $MgSO_{4}=0.22$
The correct order of their flocculating power is

NTA AbhyasNTA Abhyas 2022

Solution:

Here the correct order of their flocculating power is
IV > III > II > I
Coagulation value is inversely proportional to their flocculating power.