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A (Light pink colour complex) underset(D...

A (Light pink colour complex) `underset(Delta)overset(Pb_(2)O//dil." "HNO_(2)) to HMnO_(4) overset(H_(2)S //H^(+)) to A` (Light pink colour complex).
Calculate CFSE value in light pink colour complex.

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The correct Answer is:
0
`implies`Pink colour complex`:[Mn(H_(20O)_(6)]^(2+)`
`Mn^(2+)(3d^(5))` in `[Mn(H_(2)O)_(6)]^(+ +),Delta_(0) lt P`

CFSE of pink colour complex
`=3xx(-(2)/(5)Delta_(0))+2xx[(3)/(5)Delta_(0)]=0`
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