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why kmno4 is coloured though it has no electron in d orbital

why kmno4 is coloured though it has no electron in d orbital
 

Grade:12th pass

1 Answers

Vikas TU
14149 Points
6 years ago
The shading in KMnO4 emerges from an electronic move, however it is really not a d-d move, since the Mn in this compound has no d electrons. It emerges from a charge exchange response inside the atom, in which photons advance an electron from the most noteworthy vitality sub-atomic orbital in one of the Mn-O bonds to a vacant d orbital on the manganese. This advancement is identical to the vitality of a yellow photon, so yellow light is ingested abandoning us to see purple, the correlative shading.

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