Question

Who is strongest oxidising agent among mn3+ and mno4 ion

Answer 1

Out of Cr3+ and Mn3+, Mn3+ is a stronger oxidising agent because it has 4 electrons in its valence shell and when it gains one electron to form Mn2+, it results in the half-filled (d5) configuration that has extra stability.

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Answer 2

Answer:

Mn(3+) is a much more powerful oxidising agent than Cr(3+). The standard reduction potentials for Cr(3+)/Cr(2+) and Mn(3+)/Mn(2+) are -0.41 and +1.51 V respectively.