1.

In which of the following ions, d-d transition is not possible

Answer»

`Ti ^(4+)`
`Cr ^(3+)`
`Mn ^(2+)`
`Cu^(2+)`

Solution :Due to absence of d-electron in `Ti^(4+)([Ar], 3D^(0)4s^(0)), d-d transition is not POSSIBLE.


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