NEET Chemistry: Chemistry - Electrochemistry questions with solutions

Q1. As a lead storage battery is charged.

1. Lead dioxide dissolves
2. Sulphuric acid is regenerated
3. Lead electrode becomes coated with lead sulphate
4. The concentration of sulphuric acid decreases

Answer: Sulphuric acid is regenerated

When a lead-acid battery is charged, the chemical changes of discharge are reversed. Lead sulphate is converted back to lead and lead dioxide, and sulphuric acid is formed again in the electrolyte.