🏫 Board🧪 Chemistry

Standard electrode potentials for a few half cells are mentioned below \({\text{E}}_{C{u}^{2+}/Cu}^{∘}=0.34\text{V},{\te…

Q1

Standard electrode potentials for a few half cells are mentioned below

\({\text{E}}_{C{u}^{2+}/Cu}^{∘}=0.34\text{V},{\text{E}}_{Z{n}^{2+}/Zn}^{∘}=−0.76\text{V}\)

\({\text{E}}_{A{g}^{+}/Ag}^{∘}=0.80\text{V},{\text{E}}_{M{g}^{2+}/Mg}^{∘}=−2.37\text{V}\)

Which one of the following cells give the most negative value of \(∆{\mathrm{G}}^{\mathrm{o}}\)?

[JEE Main 2025, 23 Jan (Shift 2)]

a

\(\mathrm{Zn}|{\mathrm{Zn}}^{2+}\left(1\mathrm{M}\right)||{\mathrm{Mg}}^{2+}\left(1\mathrm{M}\right)|\mathrm{Mg}\)

b

\(\mathrm{Ag}|{\mathrm{Ag}}^{+}\left(1\mathrm{M}\right)||{\mathrm{Mg}}^{2+}\left(1\mathrm{M}\right)|\mathrm{Mg}\)

c

\(\mathrm{Zn}|{\mathrm{Zn}}^{2+}\left(1\mathrm{M}\right)||{\mathrm{Ag}}^{+}\left(1\mathrm{M}\right)|\mathrm{Ag}\)

d

\(\mathrm{Cu}|{\mathrm{Cu}}^{2+}\left(1\mathrm{M}\right)||{\mathrm{Ag}}^{+}\left(1\mathrm{M}\right)|\mathrm{Ag}\)

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