Chemistry - Electrochemistry Question with Solution | TestHub

ChemistryElectrochemistryCommercial Cells/Fuel cellEasy2 minPYQ_2020
ChemistryEasysingle choice

When a lead storage battery is discharged, then

Options:

Answer:
D
Solution:

The reaction occurring during operation (i.e., discharging) of battery are
Anode:Pb(s)+HSO4-+H2O→PbSO4(s)+2e+H3O+;EOPo=+0.356 V
Cathode:PbO2(s)+HSO4-+3H2O++2e→PbSO4(s)+5H2O;ERPo=+1.685 V
Net Charge:Pb(s)+2HSO4-+2H3O++PbO2(s)→2PbSO4(s)+4H2O;Eo=2.041 V

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:ElectrochemistrySubtopic:Commercial Cells/Fuel cell
⏱ 2mℹ️ Source: PYQ_2020

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