The standard reduction potentials at 298 K f | vedclass

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(A) The reducing power of a substance is inversely proportional to its standard reduction potential $(E^{\circ}_{red})$.$A$ more negative $E^{\circ}_{

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$Zn_{(s)}$

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(A) The reducing power of a substance is inversely proportional to its standard reduction potential $(E^{\circ}_{red})$.$A$ more negative $E^{\circ}_{red}$ value indicates a greater tendency to undergo oxidation (loss of electrons),making the species a stronger reducing agent.Comparing the given values:$E^{\circ}_{Zn^{2+}/Zn} = -0.762 \ V$$E^{\circ}_{Cr^{3+}/Cr} = -0.74 \ V$$E^{\circ}_{H^{+}/H_2} = 0.00 \ V$$E^{\circ}_{Fe^{3+}/Fe^{2+}} = 0.77 \ V$Since $Zn_{(s)}$ has the most negative standard reduction potential $(-0.762 \ V)$,it is the strongest reducing agent among the given options.

Similar Questions

In which metal container can an aqueous solution of $CuSO_4$ be stored?
$E^0_{Cu^{2+}/Cu} = 0.34 \ V$,$E^0_{Fe/Fe^{2+}} = 0.44 \ V$,$E^0_{Al/Al^{3+}} = 1.66 \ V$,$E^0_{Ni/Ni^{2+}} = 0.25 \ V$,$E^0_{Ag^{+}/Ag} = 0.80 \ V$

Identify the reaction from the following for which the standard electrode potential of the $Cu^{+2}/Cu$ electrode is $0.34 \text{ V}$ with respect to the $SHE$?

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Given standard electrode potentials:
$Fe^{2+} + 2e^- \to Fe; E^o = -0.440 \ V$
$Fe^{3+} + 3e^- \to Fe; E^o = -0.036 \ V$
The standard electrode potential $(E^o)$ for $Fe^{3+} + e^- \to Fe^{2+}$ is .............. $V$.

Given the standard electrode potentials,what is the standard electrode potential for the reaction $Fe^{3+}_{(aq)} + e^{-} \rightarrow Fe^{2+}_{(aq)}$ in $V$?
$Fe^{3+}_{(aq)} + 3e^{-} \rightarrow Fe_{(s)}$ ; $E^o = -0.036 \ V$
$Fe^{2+}_{(aq)} + 2e^{-} \rightarrow Fe_{(s)}$ ; $E^o = -0.440 \ V$

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