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Write the name of the cell which is gene...

Write the name of the cell which is generally used in hearing aids. Write the reactions taking place at the anode and the cathode of this cell.

Text Solution

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Mercury cell is used in hearing aids
Reaction: At Anode: `Zn(s)+2OH^(-)toZnO(s)+H_(2)O(l)+2e^(-)`
At Cathode: `underline(" "HgO(s)+H_(2)O(l)+2e^(-)toHg(l)+2OH^(-)" ")`
`underline(" "Zn(s)+HgO(s)toZnO(s)+Hg(l)" ")`
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