Question

The negative plates of a lead acid battery have

• A. Lead peroxide (PbO_2)
• B. Spongy lead (Pb)
• C. Lead sulphate (PbSO_4)
• D. Lead Hydrate (PbH)

Hint:

Understanding the chemistry of lead-acid batteries, including the materials of the plates and their reactions, can aid in troubleshooting and improving battery life and performance.

Answer 1

The Correct Option is B

The negative plates of a lead-acid battery are made from spongy lead. During the battery's discharge cycle, the spongy lead (Pb) reacts with the sulphuric acid electrolyte, forming lead sulphate (PbSO$_4$), while the positive plates, made of lead dioxide (PbO$_2$), undergo a similar transformation.