Surface ChemistryHard
Question
Among the electrolytes Na2SO4, CaCl2, Al2(SO4)3 and NH4Cl, the most effective coagulating agent for Sb2S3 is
Options
A.Na2SO4
B.CaCl2
C.Al2(SO4)3
D.NH4Cl
Solution
Sulphide sol have negative charge on colloidal particles.
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