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The ion that is more effective for the c...

The ion that is more effective for the coagulation of `As_2S_3 sol ` is

A

`Ba^(2+)`

B

`Na^+`

C

`PO_4^(3-)`

D

`SO_4^(2-)`

Text Solution

Verified by Experts

The correct Answer is:
D
Since `As_2S_3` is a negatively charged sol, the ion bearing the highest positive charge, is more effect for its coagulation. `Al^(3+)` has the highest positive charge ie, +3, so it more effective for the coagulation of `As_2S_3` sol.
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