Chemistry - Electrochemistry Question with Solution | TestHub

ChemistryElectrochemistryGalvanic cells/Nernst Equation/Concentration CellsEasy2 minPYQ_2020
ChemistryEasysingle choice

Consider the change in oxidation state of Bromine corresponding to different emf values as
shown in the diagram below

Then the species undergoing disproportionation is

Options:

Answer:
D
Solution:

HBrO+1→Br20,EHBrO/Br20=1.595V
HBrO+1→Br+5O3-,EBrO3-/HBrO0=1.5V
Ecell0for the disproportionation of HBrO,
Ecell0=EHBrO/Br20-EBrO3-/HBrO0
=1.595-1.5=0.095V=+ve
Hence, option (C) is correct answer asEcell0is positive in it.

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:ElectrochemistrySubtopic:Galvanic cells/Nernst Equation/Concentration Cells
⏱ 2mℹ️ Source: PYQ_2020

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