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For coagulation of arsenious sulphide so...

For coagulation of arsenious sulphide sol, which one of the following salt solution will be most effective ?

A

`Na_(3)PO_(4)`

B

`NaCl`

C

`BaCl_(2)`

D

`AlCl_(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
Sulphides are negatively charge colloid & hence it is coagulated by positive charge. Coagulation power `prop` charge so, maximum for `Al^(3+)`
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