working of mercury cell

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^-

Cracking IIT just got more exciting,It s not just all about getting assistance from IITians, alongside Target Achievement and Rewards play an important role. ASKIITIANS has it all for you, wherein you get assistance only from IITians for your preparation and win by answering queries in the discussion forums. Reward points 5 + 15 for all those who upload their pic and download the ASKIITIANS Toolbar, just a simple  to download the toolbar….

So start the brain storming…. become a leader with Elite Expert League ASKIITIANS

Thanks

Aman Bansal

Askiitian Expert