Question

Anode is formed by ______ in lead storage battery.
1. Pb²⁺
2. PbO₂
3. Pb
4. Pt

Answer 1

Correct Answer - Option 3 : Pb

The correct answer is Pb.

• The lead-acid battery
  • It uses lead as the anode and lead dioxide as the cathode, with an acid electrolyte. Hence, Option 3 is correct.
  • The symbol Pb for lead is an abbreviation of the Latin word for lead, plumbum.
  • During the charging process, the reactions at each electrode are reversed; the anode becomes the cathode and the cathode becomes the anode.
  • The reaction at the anode is oxidation and that at the cathode is reduction.
  • Here, the anode is positive and the cathode is the negative electrode.
  • The reaction at the anode is oxidation and that at the cathode is reduction.