in KMnO4 Mn in +7, then why it have colour??
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mn has maximum oxidation state
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The colour shown by almost every metal of D-block is due to unpaired electrons present in the d-subshell, but Mn in +7 oxidation state is coloured though there are no electrons.
Lets take the example of KMnO₄ where Mn has +7 oxidation state;
This colour of KMnO₄ (purple) arises due to ligand to metal charge transfer.
This is not due to d-d transition because manganese has an oxidation state of +7 implying the absence of any d electrons.
Lets take the example of KMnO₄ where Mn has +7 oxidation state;
This colour of KMnO₄ (purple) arises due to ligand to metal charge transfer.
This is not due to d-d transition because manganese has an oxidation state of +7 implying the absence of any d electrons.
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