Question

How many unpaired elctrons present d-orbital of central metal ion in Fe(CN)6 complex ion?

Answer 1

Answer:

[Fe(CN)6] 4-

oxidation state of Fe is +2

Fe2+ › [Ar] 3d6 4s0

earlier in central metal atom 4 unpaired e- are present

since CN6 is strong ligand so all e- get paired so, no unpaired e- are present

write correct complex ion...