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In lead storage battery, the anode react...

In lead storage battery, the anode reaction is

A

`Pb^(2+) + 2e^(-) rarr Pb`

B

`Pb + H_(2)SO_(4) rarr PbSO_(4) + 2H^(+) + 2e^(-)`

C

`PbO + H_(2)SO_(4) rarr PbSO_(4) + H_(2)O`

D

`2PbO + Pb rarr 2Pb = PbO_(2)`

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The correct Answer is:
To determine the anode reaction in a lead storage battery, we need to understand the basic principles of how the battery operates. ### Step-by-Step Solution: 1. **Understanding the Lead Storage Battery**: - A lead storage battery is a type of secondary battery that can be recharged. It consists of lead (Pb) as the anode and lead oxide (PbO2) as the cathode, with sulfuric acid (H2SO4) as the electrolyte. 2. **Identifying the Anode Reaction**: - In electrochemical cells, oxidation occurs at the anode. For the lead storage battery, the anode reaction involves lead reacting with sulfuric acid. 3. **Writing the Anode Reaction**: - The reaction at the anode can be represented as: \[ \text{Pb} + \text{H}_2\text{SO}_4 \rightarrow \text{PbSO}_4 + 2\text{H}^+ + 2e^- \] - In this reaction, lead (Pb) is oxidized to lead sulfate (PbSO4), releasing protons (H+) and electrons (e-). 4. **Selecting the Correct Option**: - Among the provided options, the one that matches our derived anode reaction is: - **Option 2**: Pb + H2SO4 → PbSO4 + 2H+ + 2e- ### Conclusion: The correct anode reaction in a lead storage battery is given by option 2. ---
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