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Which of the following electrolytes will...

Which of the following electrolytes will be most effective in the coagulation of gold sol :

A

`NaNO_(3)`

B

`K_(4)[Fe(CH)_(6)]`

C

`Na_(3)PO_(4)`

D

`MgCl_(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
Gold sol is - ve sol, so coagulating ion is cation.
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