The zinc /silver oxide cell is used in hearing aids and electric watches .
`Zn to Zn^(2+) + 2 e^(-) E^(Theta) = -0.76 V`
`Ag_(2) O + H_(2) O + 2e^(-) to 2 Ag +2 OH^(-) E^(Theta) = 0.344 V`
Which is oxidised and which is reduced ?

Explanation

To determine which species is oxidized and which is reduced in the zinc/silver oxide cell, we will analyze the half-reactions and their standard electrode potentials.

### Step 1: Identify the half-reactions
The half-reactions provided are:
1. **Zinc oxidation**:
\[ \text{Zn} \rightarrow \text{Zn}^{2+} + 2 e^{-} \quad E^{\Theta} = -0.76 \, \text{V} \]
...