What happens when lead storage battery is subjected to charging?

Explanation

### Step-by-Step Solution:

1. **Understanding the Lead Storage Battery**:
- A lead storage battery, also known as a lead-acid battery, consists of lead dioxide (PbO2) as the positive plate, sponge lead (Pb) as the negative plate, and a sulfuric acid (H2SO4) solution as the electrolyte.

2. **Charging Process**:
- When the lead storage battery is subjected to charging, an external electrical current is applied to the battery. This current drives a chemical reaction that reverses the discharge process.

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