CrO4-2,Cr2O7-2,MnO4-,MnO4-2 How many in the list exhibit colour due to charge transfer phenomenon

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answer is B.

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Detailed Solution

MnO4-, CrO4-2 , Cr2O7-2(do)….Colour is due to charge transfer phenomenonMnO4-2(d1) ….Contains one unpaired electron, colour is due to d-d transitions

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