COMEDK · Chemistry · 18. Electrochemistry
When Lead Storage battery is in the process of getting charged which one of the following reactions takes place?
- A \(\mathrm{PbSO}_{4(\mathrm{~s})}\) gets converted to \(\mathrm{Pb}_{(\mathrm{S})}\) and \(\mathrm{PbO}_{2(\mathrm{~s})}\)
- B \(\mathrm{SO}_3\) gas gets liberated and \(\mathrm{PbO}_{2(\mathrm{~s})}\) is formed.
- C \(\mathrm{PbO}_{2(s)}\) is reduced.
- D \(\mathrm{Pb}_{(\mathrm{S})}\) gets consumed.
Answer & Solution
Correct Answer
(A) \(\mathrm{PbSO}_{4(\mathrm{~s})}\) gets converted to \(\mathrm{Pb}_{(\mathrm{S})}\) and \(\mathrm{PbO}_{2(\mathrm{~s})}\)
Step-by-step Solution
Detailed explanation
In a lead storage battery, the discharge reaction is: \(\mathrm{Pb}_{(s)} + \mathrm{PbO}_{2(s)} + 2\mathrm{H}_{2}\mathrm{SO}_{4(aq)} \rightarrow 2\mathrm{PbSO}_{4(s)} + 2\mathrm{H}_{2}\mathrm{O}_{(l)}\). During the charging process, the reaction is reversed by applying an…
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