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Which of the following electrolytes wil...

Which of the following electrolytes will have maximum coagulating value for `AgI//Ag^(+)` sol ?

A

`Na _(2)S`

B

`Na _(3) PO_(4)`

C

`Na _(2) SO _(4)`

D

`Na Cl`

Text Solution

Verified by Experts

The correct Answer is:
B
`AgI: Ag ^(+)` is positively charged colloid. Electrolyte whose negative ion has higher charge will have maximum coagulating power. `Na _(3) PO_(4)` having `PO_(4) ^(3-)` will have maximum coagulating power.
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