Among the electrolytes `Na_(2),SO_(4),CaCl_(2),Al_(2)(SO_(4))_(3) and NH_(4)Cl`, the most effective coagulating agent for `Sb_(2)S_(3)` sol is

Among the electrolysis of Na_(2)SO_(4), CaCl_(2), Al_(2)(SO_(4))_(3) and NH_(4)Cl , the most effective coagulating agent for Sb_(2)S_(3) sol is

Among the electrolytes Na _(2) SO_(4), CaCl_(2), Al_(2) (SO_(4)) _(3) and NH_(4)Cl, the most efective coagulating agent for Sb _(2) S_(3) sol is

Among the electrolytes Na_(2)SO_(4),CaCl_(2),As_(2)(SO_(4))_(3) and NH_(4)Cl, the most effective coagulationf agent for Sb_(2)S_(3) negatively charged sol is :

Among the electrolytes Na_(2)SO_(4) , CaCI_(2), AI_(2)(SO_(4))_(3) and NH_(4)CI the most effctive oagulating agent for Sb_(2)S_(3) sol is

The effective coagulating agent of Sb_(2)S_(3) sol is -