Surface ChemistryEasy
Question
A colloidal solution of arsenious sulphide is most readily coagulated by the addition of a normal solution?
Options
A.NaCl
B.CaCl2
C.Na3PO4
D.Al2(SO4)3
Solution
Arsenious sulphide is negatively charged sol so more the charge on cation of electrolyte, more the efficiency of electrolyte for coagulation.
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