A) \[B{{a}^{2+}}\]
B) \[N{{a}^{+}}\]
C) \[PO_{4}^{3-}\]
D) \[SO_{4}^{2-}\]
E) \[A{{l}^{3+}}\]
Correct Answer: E
Solution :
Since,\[A{{S}_{2}}{{S}_{3}}\]is a negatively charged sol, the ion bearing the highest positive charge, is more effective for its coagulation.\[A{{l}^{3+}}\]has the highest positive charge, ie, +3, so it is more effective for the coagulation of\[A{{S}_{2}}{{S}_{3}}\]sol.
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