The concentration of electrolyte required to coagulate a given amount of As_(2)S_(3) sol.is minimum in the case of :

The concentration of electrolyte required to coagulate a given amount

1.	The concentration of electrolyte required to coagulate a given amount of As_(2)S_(3) sol.is minimum in the case of :
Answer» Potassium sulphate Aluminium nitrate Magnese nitrate Potassium nitrate Solution :`As_(2)S_(3)` is a negatively CHARGED sol. As such `AL^(3+)` from `Al(NO_(3))_(3)` will be most effective for bringing about the COAGULATION.