ElectrochemistryHard

Question

When a lead storage battery is discharged :

Options

A.SO2 is evolved
B.lead is formed
C.lead sulphate is consumed
D.sulphuric acid is consumed

Solution

FactualDuring discharge following reaction takes place.
Pb(s) + 2H2SO4- + 2H3O+ + PbO2(s) → 2PbSO4(s) + 4H2O Eo = 2.041V

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