Lead Storage Battery
Mediumchemistry
During discharge of a lead storage battery, both electrodes are converted to:
Select the correct option:
Solution
Incorrect! Answer:
PbSO4
- Anode reaction: Pb(s)+SO42−→PbSO4(s)+2e−.
- Cathode reaction: PbO2(s)+SO42−+4H++2e−→PbSO4(s)+2H2O.
- Observation: Both the Lead plate and the Lead Dioxide plate react with Sulfuric acid to form Lead(II) Sulfate (PbSO4).
- Electrolyte Effect: In the process, Sulfuric acid is consumed (S is removed to form sulfate precipitates), leading to a decrease in the density of the acid which can be used to check battery charge status.
🔒 Solution Hidden from View
Submit your answer to unlock the detailed step-by-step solution.
More lead storage battery Practice Questions
About This Question
- Subject
- chemistry
- Chapter
- electrochemistry
- Topic
- lead storage battery
- Difficulty
- Medium
- Year
- 2025
Solution
Correct Answer:
PbSO4
- Anode reaction: Pb(s)+SO42−→PbSO4(s)+2e−.
- Cathode reaction: PbO2(s)+SO42−+4H++2e−→PbSO4(s)+2H2O.
- Observation: Both the Lead plate and the Lead Dioxide plate react with Sulfuric acid to form Lead(II) Sulfate (PbSO4).
- Electrolyte Effect: In the process, Sulfuric acid is consumed (S is removed to form sulfate precipitates), leading to a decrease in the density of the acid which can be used to check battery charge status.
This medium difficulty chemistry question is from the chapter electrochemistry, covering the topic of lead storage battery. It appeared in the 2025 exam.
Looking for more practice? Explore all chemistry questions or browse electrochemistry questions on RankGuru.