Question

For coagulation of arsenious sulphide sol, which one of the following salt solution will be most effective?
(A) BaCl₂ (B) AlCl₃
(C) NaCl (D) Na₃PO₄

Answer 1

Answer:

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Answer 2

Answer:

aresenious sulphide have negtive charge

so precipitated by positively charged sol by hardy sulze rule which is alcl3

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