Question

Write the anode, cathode, and overall reaction of lead storage battery.

Hint:

- In a lead storage battery, lead and lead dioxide act as the electrodes, with sulfuric acid serving as the electrolyte. - The overall reaction involves the conversion of lead and lead dioxide into lead sulfate.

Answer 1

In a lead storage battery, the reactions at the anode, cathode, and overall reaction are as follows: - Anode (oxidation): \[ \text{Pb} + \text{SO}_4^{2-} \rightarrow \text{PbSO}_4 + 2e^- \] - Cathode (reduction): \[ \text{PbO}_2 + \text{SO}_4^{2-} + 4H^+ + 2e^- \rightarrow \text{PbSO}_4 + 2H_2\text{O} \] - Overall reaction: \[ \text{Pb} + \text{PbO}_2 + 2\text{H}_2\text{SO}_4 \rightarrow 2\text{PbSO}_4 + 2H_2\text{O} \] This is the reaction that takes place during the discharge of a lead storage battery.