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प्रश्न
Predict the product of electrolysis in the following:
An aqueous solution of AgNO3 with platinum electrodes.
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उत्तर १
At cathode: Silver ions will be reduced, and silver metal will be deposited.
At anode: The anode is not attacked, hence OH− ions have a lower discharge potential than NO3 ions. As a result, OH− ions discharge first, followed by NO3 ions, which decompose to release O2.
\[\ce{4OH -> 2H2O_{(l)} + O2_{(g)}}\]
उत्तर २
At cathode: Silver metal will be deposited as silver ions are reduced.
At anode: Water will preferentially oxidise and oxygen will evolve because its reduction potential is lower than that of \[\ce{NO^-_3}\] ions.
\[\ce{H2O_{(l)} -> \frac{1}{2} O2_{(g)} + 2H^+_{ (aq)} + 2e-}\]
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संबंधित प्रश्न
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