. The color of KMnO4 is due to
A: M → L charge transfer transition
B: d - d transition
C: L → M charge transfer transition
D: σ - σ^∗ transition
- The colour of KMnO4 is due to the ligand to metal charge transfer.
- The magnesium(Mn) metal is in its highest Oxidation State i.e +7 and it has no electron in its outermost shell The electronic configuration is hence there is no possibility of d-d transition.
- There is transfer of charge takes place from the 2p orbital of oxygen ligand (O2-) to the vacant orbital of Mn atom and we get intense purple colour of this compound.
Correct Option is: (C)
L → M charge transfer transition