A) \[P{{b}^{2+}}\]
B) \[P{{b}^{4+}}\]
C) \[S{{r}^{2+}}\]
D) \[N{{a}^{+}}\]
Correct Answer: B
Solution :
The phenomenon of change of colloidal state to suspension is called flocculation of colloidal solution. According to Hardy-SchuIze rule, the flocculating power of electrolytes increases with the valency of the ion of electrolyte.
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