question_answer

The coagulation values (in millimoles per litre) of electrolytes used for the coagulation of \[A{{S}_{2}}{{O}_{3}}\]are given as :

I.   NaCI = 52

II.  KCI = 5

III.  \[BaC{{l}_{2}}\text{ }=\text{ }0.69~\]

IV. \[MgS{{0}_{4}}\text{ }=\text{ }0.22\]

The correct order of their flocculating power is

A)  \[I~>II~>III>~IV\]  

B)  \[I~>II~>III>~IV\]

C)  \[IV>~III>~II>~I\]

D)  \[IV>III~>II>I\]