The electrochemical reaction which powers a lead-acid storagebattery is as follows:Pb(s) + PbO2(s) + 4H*(aq) + 2SO,²-(aq) → 2PBSO4(s) + 2H20(1)A single cell of this battery consists of a Pb electrode and a PbO2electrode, each submerged in sulfuric acid. What reaction occursat the cathode during discharge?O PbO2(s) is oxidized to PbSO4(s).O PbO2(s) is reduced to PbSO4(s).H* is oxidized to H20(1) .O Pb(s) is oxidized to PbSO4(s).O Pb(s) is reduced to PbSO4(s).

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at the cathode during discharge?

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter18: Introduction To Electrochemistry

Section: Chapter Questions

Problem 18.18QAP

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Science behind corrosion-test

Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.

Corrosion

Question

The electrochemical reaction which powers a lead-acid storage
battery is as follows:
Pb(s) + PbO2(s) + 4H*(aq) + 2SO,²-(aq) → 2PBSO4(s) + 2H20(1)
A single cell of this battery consists of a Pb electrode and a PbO2
electrode, each submerged in sulfuric acid. What reaction occurs
at the cathode during discharge?
O PbO2(s) is oxidized to PbSO4(s).
O PbO2(s) is reduced to PbSO4(s).
H* is oxidized to H20(1) .
O Pb(s) is oxidized to PbSO4(s).
O Pb(s) is reduced to PbSO4(s).

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