Chemistry - Electrochemistry Question with Solution | TestHub

ChemistryElectrochemistryGalvanic cells/Nernst Equation/Concentration CellsEasy2 minPYQ_2017

ChemistryEasysingle choice

Which among the following equations represents the reduction taking place in lead accumulator at positive electrode, While it is being used as a source of electrical energy?

Options:

Answer:

Solution:

Reaction at positive electrode is,
$P b O_{2} (s) + 4 H^{+} + S O_{4}^{2 -} (a q) + 2 e^{-} \to P b S O_{4} (s) + 2 H_{2} O (l)$
$∴ P b^{4 +}$ is converted into $P b^{2 +}$

Stream:MHT_CETSubject:ChemistryTopic:ElectrochemistrySubtopic:Galvanic cells/Nernst Equation/Concentration Cells

⏱ 2mℹ️ Source: PYQ_2017

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