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A colloidal sol of antimony trisulphide ...

A colloidal sol of antimony trisulphide is most readily coagulated by the addition of a normal solution of

A

NaCl

B

`CaCl_(2)`

C

`Na_(3)PO_(4)`

D

`Al_(2)(SO_(4))_(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
Arsenious sulphide is negatively charged sol more the charge on cation of electrolyte, more the efficiency of electrolyte for coagulation.
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