[Fe(CN) 6 ] 4– and [Fe(H 2 O) 6 ] 2+ show different colours in dilute solution because
Chemistry · Class 12 · CBSE — Coordination Compounds
[Fe(CN)6]4– and [Fe(H2O)6]2+ show different colours in dilute solution because
- CN– is a strong field ligand and H2O is a weak field ligand hence magnitude of CFSE is different
- both CN– and H2O absorb same wavelength of energy
- complexes of weak field ligands are generally colourless
- the sizes of CN– and H2O are different hence their colours are also different.
Answer
(A) CN – is a strong field ligand and H 2 O is a weak field ligand hence magnitude of CFSE is different
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