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The concentration of electrolyte require...

The concentration of electrolyte required to coagulate a given amount of `As_(2)S_(3)` sol.is minimum in the case of :

A

Potassium sulphate

B

Aluminium nitrate

C

Magnese nitrate

D

Potassium nitrate

Text Solution

Verified by Experts

The correct Answer is:
B
`As_(2)S_(3)` is a negatively charged sol. As such `Al^(3+)` from `Al(NO_(3))_(3)` will be most effective for bringing about the coagulation.
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