Four successive members of the first row transition elements are listed below with atomic numbers. Which one of them is expected to have the highest $E^o_{M^{3+} /M^{2+}}$ value ?

  • [JEE MAIN 2013]
  • A

    $Cr\,(Z=24)$

  • B

    $Mn\,(Z = 25)$

  • C

    $Fe\,(Z=26)$

  • D

    $Co\,(Z = 27)$

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  • [AIPMT 1999]

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