Consider the following reduction process:

\({\mathrm{Al}}^{3+}+3{\mathrm{e}}^{−}\overset{}{\to }\mathrm{Al}(\mathrm{s}),\text{ }\mathrm{E}^\circ =−1.66\text{}V\)

\({\mathrm{Fe}}^{3+}+{\mathrm{e}}^{−}\overset{}{\to }{\mathrm{Fe}}^{2+},\text{ }\mathrm{E}^\circ =+0.77\mathrm{V}\)

\({\mathrm{Co}}^{3+}+{\mathrm{e}}^{−}\overset{}{\to }{\mathrm{Co}}^{2+},\text{ }\mathrm{E}^\circ =+1.81\mathrm{V}\)

\({\mathrm{Cr}}^{3+}+3{\mathrm{e}}^{−}\overset{}{\to }\mathrm{Cr}(\mathrm{s}),\text{ }\mathrm{E}^\circ =−0.74\mathrm{V}\)

The tendency to act as reducing agent decreases in the order

[JEE Main 2026, 22 Jan (Shift 2)]

Question

Consider the following reduction process:

\({\mathrm{Al}}^{3+}+3{\mathrm{e}}^{−}\overset{}{\to }\mathrm{Al}(\mathrm{s}),\text{ }\mathrm{E}^\circ =−1.66\text{}V\)

\({\mathrm{Fe}}^{3+}+{\mathrm{e}}^{−}\overset{}{\to }{\mathrm{Fe}}^{2+},\text{ }\mathrm{E}^\circ =+0.77\mathrm{V}\)

\({\mathrm{Co}}^{3+}+{\mathrm{e}}^{−}\overset{}{\to }{\mathrm{Co}}^{2+},\text{ }\mathrm{E}^\circ =+1.81\mathrm{V}\)

\({\mathrm{Cr}}^{3+}+3{\mathrm{e}}^{−}\overset{}{\to }\mathrm{Cr}(\mathrm{s}),\text{ }\mathrm{E}^\circ =−0.74\mathrm{V}\)

The tendency to act as reducing agent decreases in the order

[JEE Main 2026, 22 Jan (Shift 2)]

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Consider the following reduction process: \({\mathrm{Al}}^{3+}+3{\mathrm{e}}^{−}\overset{}{\to }\mathrm{Al}(\mathrm{s}),…