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During the electrolysis of aqueous zinc nitrate.A. Zince plates out at the cathodeB. Zince plates out at the anodeC. Hydrogen gen `H_(2)` is evolved at the anode.D. Oxygen gas `O_(2)` is evolved at anode |
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Answer» Correct Answer - a,d Anqueous `Zn(NO_(3))_(2):` Cathode `: (sqrt()) Zn^(2+)(aq)+2e^(-) rarr Zn(s)` `E^(c-)._(Zn^(2+)|Zn)=-0.76V` `(X)2H_(2)O(l)+2e^(-) rarr H_(2)(g)+2overset(c-)(O)H(aq)` `E^(c-)._(H_(2)O|H_(2))=-0.83V` Anode `: (sqrt())2H_(2)O(l) rarr O_(2)(g)+4H^(o+)(aq)+4e^(-)` `E^(c-)._(H_(2)O|O_(2))` `(X)NO_(3)^(c-)rarr x` |
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