Which of the following compounds is/are coloured due to charge transfer spectra and not due to $d - d t r a n s i t i t i o n$ ?

K M n O_{4}

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All of these

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K_{2} C r_{2} O_{7}

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K_{2} C r O_{4}

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Solution

The correct option is B All of these
As $C r, M n are in + 6 a n d + 7$ oxidation state respectively in these compounds.

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