The solution of MnO_4^- is purple-coloured du | vedclass

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(B) The correct answer is $(B)$.The $MnO_4^-$ ion exhibits a deep purple colour due to ligand-to-metal charge transfer $(LMCT)$.In $MnO_4^-$,the oxida

Vedclass · Accepted Answer

charge transfer from $O$ to $Mn$

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(B) The correct answer is $(B)$.The $MnO_4^-$ ion exhibits a deep purple colour due to ligand-to-metal charge transfer $(LMCT)$.In $MnO_4^-$,the oxidation state of $Mn$ is $+7$,which corresponds to a $d^0$ electronic configuration.Since there are no $d$-electrons available for $d-d$ transitions,the intense colour arises from the transfer of electrons from the oxygen $2p$ orbitals to the empty $3d$ orbitals of the $Mn^{7+}$ ion.

The solution of $MnO_4^-$ is purple-coloured due to:

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