CuSO 4 ⋅ 5H 2 O is blue in colour while CuSO 4 is colourless due to
Chemistry · Class 12 · CBSE — Coordination Compounds
CuSO4⋅5H2O is blue in colour while CuSO4 is colourless due to
- presence of strong field ligand in CuSO4⋅5H2O
- due to absence of water (ligand), d - d transition are not possible in CuSO4
- anhydrous CuSO4 undergoes d - d transitions due to crystal field splitting
- colour is lost due to loss of unpaired electrons.
Answer
(B) due to absence of water (ligand), d - d transition are not possible in CuSO 4
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