Chemistry - Electrochemistry Question with Solution | TestHub

ChemistryElectrochemistryCorrosionEasy2 minPYQ_2020
ChemistryEasysingle choice

Given

E Ag ⊕ |Ag o = + 0.80 V;  E Co 2+ |Co o = −0.28 V,  E Cu 2+ |Cu o = + 0.34 V,  E Zn 2+ |Zn o = −0.76 V .

Which metal will corrode fastest?

Options:

Answer:
D
Solution:

Here Zinc will corrode fastest as it has maximum tendency to get oxidized due to maximumEOPohere or minimumERPohere.
Tendency to corrode∝negative value ofERPo
E Zn 2+ |Zn o is most negative.

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:ElectrochemistrySubtopic:Corrosion
⏱ 2mℹ️ Source: PYQ_2020

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