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⁺ + PbO_2(s) → 2PbSO_4(s) + 4H₂O E^o_{= 2.041V}

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