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13/09/2020 7:18 pm
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Write the electrode reactions for anode and cathode in a mercury cell.
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13/09/2020 7:22 pm
At anode : Zn (amalgam) + 2OH- → ZnO + H2O + 2e-
At cathode : HgO (s) + H2O (l) + 2e- → Hg (l) + 2OH- (aq)
The overall reaction is : Zn (amalgam) + HgO (s) → ZnO (s) + Hg (l)