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Which of the following is most effective...

Which of the following is most effective in coagulating positively charged hydrated ferric oxide sol ?
(i) `NaNO_(3)` (ii) `Na_(2)SO_(4)` (iii) `(NH_(4))_(3)PO_(4)`

A

`NaNO_3`

B

`Na_2SO_4`

C

`(NH_4)_3PO_4`

D

`LiAlH_4`

Text Solution

Verified by Experts

The correct Answer is:
C
For the coagulating of positively charged Hydrated ferric sol, the coagulating process of the anions are in the order: `PO_4^(3-) gt SO_4^(2-) gt NO_3^(-)`
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