Write the cell reactions for the following cells :
(a) `Fe|Fe^(2+)||H_(2)SO_(4)|H_(2)(Pt)`
(b) `(Pt)H_(2)|HCl||Cl_(2)(Pt)`

Explanation

To write the cell reactions for the given electrochemical cells, we need to identify the half-reactions occurring at the anode and cathode for each cell.

### (a) For the cell `Fe|Fe^(2+)||H_(2)SO_(4)|H_(2)(Pt)`:

1. **Identify the Anode and Cathode**:
- Anode: Iron (Fe) is oxidized to Fe²⁺.
- Cathode: Hydrogen ions (H⁺) from sulfuric acid (H₂SO₄) are reduced to hydrogen gas (H₂).

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