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Why does Cr2+ acts as reducing agent??? Won't it gain electron to acquire d5 stability just as in the case Mn3+??????This and the below mentioned question are utterly confusing me...Plz clarify .....with suitable explanations....
Dear studentAs above answer is not so visible due to text colour, I am posting the same in black text colourCr2+ is a reducing agentwhile Mn3+ is an oxidizing agentin spite of both having d4 configuration.When Cr2+ gets oxidized to Cr3+ (d3),it attains a stable half-filled t2g orbitalsbut when Mn3+ gets reduced to Mn2+ (d5),it attains a stable half-filled d orbitals.
Dear student
As above answer is not so visible due to text colour, I am posting the same in black text colour
Cr2+ is a reducing agent
while Mn3+ is an oxidizing agent
in spite of both having d4 configuration.
When Cr2+ gets oxidized to Cr3+ (d3),
it attains a stable half-filled t2g orbitals
but when Mn3+ gets reduced to Mn2+ (d5),
it attains a stable half-filled d orbitals.
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