The coagulation values in millimoles per litre of the electrolytes used for the coagulation of As2S3 are given below: I.(NaCl)=52,II.(BaCl2)=0.69,III.(MgSO4)=0.22
The correct order of their coagulating power is
A
I > II > III
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B
II > I > III
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C
III > II > I
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D
III > I > II
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Solution
The correct option is C III > II > I Coagulatingpower∝1Coagulationvalue
Lower the coagulation value, higher is the coagulating power so, the correct order is : MgSO4(III)>BaCl2(II)>NaCl(I)