Which substance is used as cathode in a mercury cell?
- A$HgO + C$
- B$ZnO + Pt$
- C$HgO + KOH$
- D$ZnO + NaOH$
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Efficiency of a cell with cell reaction under standard conditions is $70\%$. Cell reaction:
$A_{(s)} + B^{\oplus} \longrightarrow A^{\oplus} + B_{(s)}$ ; $\Delta H^o = -551.5 \ kJ$. Calculate standard electrode potential of cell (in $volt$).
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