MCQ
Which of the following electrolytes will have maximum coagulating value for $\text{AgI}/ \text{Ag}^+$ sol?
- A$\text{Na}_2\text{S}$
- ✓$\text{Na}_3\text{PO}_4 $
- C$\text{Na}_2\text{SO}_4$
- D$\text{NaCl}$
| Electrolytes | Anionic part | Charge on anion |
| $\text{Na}_2\text{S}$ | $\text{S}^{2-}$ | $2$ |
| $\text{Na}_3\text{PO}_4 $ | $\text{PO}_4^{3-}$ | $3$ |
| $\text{Na}_2\text{SO}_4$ | $\text{SO}_4^{2-}$ | $2$ |
| $\text{NaCl}$ | $\text{Cl}^-$ | $1$ |
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$2MnO_4^-+ 10I^-+ 16H^+ \to 2Mn^{2+} + 5I_2 + 8 H_2O$
The rate of apperance of $I_2$ is