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Q.

The correct statement about iron includes
(I) the highest oxidation state of iron is +6 in K2FeO4
(II) that the iron shows +2 oxidation state with six electrons in the 3d orbitals
(III) the common oxidation state of iron is +3 with five unpaired electrons in the 3d orbital

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An Intiative by Sri Chaitanya

a

I, Il, III

b

I, II

c

II, III

d

I only

answer is A.

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Detailed Solution

Fe2+⟶[Ar]183d6Fe3+⟶[Ar]183d5

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