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Assertion: E^(ɵ) for (Mn^(3+))/(Mn^(2+))...

Assertion: `E^(ɵ)` for `(Mn^(3+))/(Mn^(2+))` is more positive than for `(Cr^(3+))/(Cr^(2+))`.
Reason: The third ionisation energy of Mn is larger than that of Cr.

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