Which of the following will be formed when lead storage battery is charged ?

Options

A. Sulphuric acid is consumed
B. Lead is consumed
C. Sulphuric acid is formed
D. Lead sulphate is formed .

Answer

To determine what is formed when a lead storage battery is charged, we need to analyze the reactions that occur during the charging process.

### Step-by-Step Solution:

1. **Identify the Components of the Lead Storage Battery**:
- The lead storage battery consists of:
- Anode: Metallic Lead (Pb)
- Cathode: Lead Dioxide (PbO2)
- Electrolyte: Dilute Sulfuric Acid (H2SO4)

2. **Understand the Charging Process**:
- During charging, the battery undergoes a chemical reaction that reverses the discharging process. The lead sulfate (PbSO4) formed during discharging is converted back to lead (Pb) and lead dioxide (PbO2).

3. **Write the Half-Reactions**:
- At the anode (oxidation):
\[ PbSO4 + 2H2O \rightarrow PbO2 + SO4^{2-} + 4H^{+} + 2e^{-} \]
- At the cathode (reduction):
\[ PbSO4 + 2e^{-} \rightarrow Pb + SO4^{2-} \]

4. **Combine the Half-Reactions**:
- The overall reaction during charging can be summarized as:
\[ 2PbSO4 + 2H2O \rightarrow Pb + PbO2 + 2H2SO4 \]
- This shows that lead (Pb) and lead dioxide (PbO2) are formed, while lead sulfate (PbSO4) is consumed.

5. **Conclusion**:
- When a lead storage battery is charged, the products formed are lead (Pb) and lead dioxide (PbO2), along with sulfuric acid (H2SO4).

### Final Answer:
The products formed when a lead storage battery is charged are **Lead (Pb) and Lead Dioxide (PbO2)**.