Question

For lead storage battery pick the the correct statements.
A. During charging of battery, PbSO4 on anode is converted into PbO2 
B. During charging of battery, PbSO4 on cathode is converted into PbO2 
C. Lead storage battery, consists of grid of lead packed with PbO2 as anode 
D. Lead storage battery has ~ 38% solution of sulphuric acid as an electrolyte 
Choose the correct answer from the options given below:

• A. A, B, D only
• B. B, D only
• C. B, C only
• D. B, C, D only

Answer 1

The Correct Option is B

The question requires understanding the chemical processes involved in the functioning of a lead storage battery. Let's analyze each statement one by one to determine their correctness.

• A. During charging of the battery, PbSO₄ on the anode is converted into PbO₂.
  This statement is correct. During the charging process, the lead dioxide (PbO₂) is regenerated from lead sulfate (PbSO₄) at the positive plate (anode).
• B. During charging of the battery, PbSO₄ on the cathode is converted into PbO₂.
  This statement is incorrect. During charging, the PbSO₄ on the cathode is converted to lead (Pb), not PbO₂.
• C. Lead storage battery consists of a grid of lead packed with PbO₂ as an anode.
  This statement is incorrect. In a lead-acid battery, PbO₂ serves as the cathode (positive plate), not the anode.
• D. Lead storage battery has ~ 38% solution of sulphuric acid as an electrolyte.
  This statement is correct. The electrolyte used in a lead-acid battery is a dilute solution of sulfuric acid, generally about 30-38% concentration.

Based on the analysis, the correct statements are B and D. Thus, the solution is: B, D \text{ only}.