Academic session 2026-27, Chapter 2 in the current curriculum.
Welcome to the NCERT Solutions for Class 12 Chemistry - Chapter Electrochemistry. This page offers a step-by-step solution to the specific question from Exercise 1, Question 13:
Write the chemistry of recharging the lead storage battery, highlighting all the materials that are involved during recharging.
. With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.Write the chemistry of recharging the lead storage battery, highlighting all the materials that are involved during recharging.
A lead storage battery consists of a lead anode, a grid of lead packed with lead oxide (PbO2) as the cathode, and a 38% solution of sulphuric acid (H2SO4) as an electrolyte.
When the battery is in use, the following cell reactions take place:
At anode: Pb(s) + SO2-4(aq) → PbSO4(s) + 2e-
At cathode:
The overall cell reaction is given by,
When a battery is charged, the reverse of all these reactions takes place.
Hence, on charging, present at the anode and cathode is converted into and respectively.
The reaction between A and B is first order with respect to A and zero order with respect to B. Fill in the blanks in the following table:
| Experiment |
A/ mol L - 1 |
B/ mol L - 1 |
Initial rate/mol L - 1 min - 1 |
| I | 0.1 | 0.1 |
2.0 × 10 - 2 |
| II | -- | 0.2 |
4.0 × 10 - 2 |
| III | 0.4 | 0.4 | -- |
| IV | -- | 0.2 |
2.0 × 10 - 2 |
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
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Welcome to the NCERT Solutions for Class 12 Chemistry - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 13: Write the chemistry of recharging the lead storage battery, highlighting all the materials that are ....
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Comments
On charging the battery the PbSO4 that is formed on both cathode and anode gets coverted back to PbO2 n Pb
Good