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In coagulation of a (colloidal) solution...

In coagulation of a (colloidal) solution of `As_2S_3`, which has maximum coagulating power ?

A

NaCl

B

KCl

C

`BaCl_(2)`

D

`AlCl_(3)`

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Verified by Experts

The correct Answer is:
D
`As_(2)S_(3)` is negative sol. For coagulating negative sol. `Al^(3+)` is most effective. The higher the magnitude of the charge, the lower is coagulating value.
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