The $\mathrm{E}^{\circ}$ value for the $\mathrm{Mn}^{3 *} / \mathrm{Mn}^{2+}$ couple is more positive than that of $\mathrm{Cr}^{3+} / \mathrm{Cr}^{2+}$ or $\mathrm{Fe}^{3+} / \mathrm{Fe}^{2 *}$ due to change of

  • [NEET 2024]
  • A

     $d^5$ to $d^2$ configuration

  • B

    $d^4$ to $d^5$ configuration

  • C

     $d^3$ to $d^5$ configuration

  • D

     $d^5$ to $d^4$ configuration

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