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Question

The anodic half-cell of lead-acid battery is recharged using electricity of 0.05 Faraday. The amount of PbSO4 electrolysed in g during the process is:(molar mass of PbSO4=303 g mol1)

A
22.8
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B
15.2
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C
7.6
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D
11.4
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Solution

The correct option is B 15.2
(Anode) PbSO4(s) +2OHPbO2 +H2SO4+2e 0.05/2 mole 0.05F(Cathode) PbSO4+2e +2H+ Pb(s)+H2SO4 0.05/2 mole 0.05 F nT(PbSO4) =0.05 ×303 =15.2 g

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