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working of mercury cell

working of mercury cell

Grade:12th Pass

1 Answers

Aman Bansal
592 Points
8 years ago

Dear Gaurav,

HgO(l) + Zn(s) --> ZnO(s) + Hg(l)

So one has

Hg2+ + Zn(s) --> Zn2+ + Hg(l)

and the oxygen does not change valence, it is simply transferred form Hg to Zn.

Half cell reactions

Hg2+ + 2 e- --> + Hg

Zn --> Zn2+ + 2 e-

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