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Question
Write the net cell reaction during discharging of lead accumulator.
Solution
\[\ce{Pb_{(s)} + PbO2_{(s)} + 4H^⊕_{(aq)} + 2SO^{2Θ}_4{(aq)} -> 2PbSO4(s) + 2H2O(l)}\]
This reaction summarises the overall process occurring within the lead acid battery during discharge, where lead and lead dioxide undergo a chemical reaction in the presence of sulphuric acid to produce lead sulphate and water.
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