AP EAMCET201823 Apr 2018Morning ShiftChemistryElectrochemistryActual

For which one of the following elements, M³⁺ M²⁺ standard electrode potential is more positive?

Options

Correct answer

C. Mn

Step-by-step solution

The reduction potential of Mn ³⁺ / Mn ²⁺ is most positive, because of stability of the half-filled d -subshell in Mn ²⁺ . The V ²⁺ has lowest value due to the stability of V ²⁺ as it is half-filled.

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