The button cell used is watches function as follows :
`Zn(s) + Ag_(2)O(s) + H_(2)O(l) hArr2Ag(s) + Zn^(2+) (aq) + 2OH(aq)`
the half cell potentials are
`Ag_(2)O(s) + H_(2)O(l) + 2e^(-) to 2Ag(s) + 2OH^(-)(aq) E^(0) = 0.34 V`.
The cell potential will be :

Options

A. `0.84 V`
B. `1.34 V`
C. `1.10V`
D. `0.42 V`

Answer

C