Colour of which of the following is attributed to charge transfer spectrum?

K M n O_{4}

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K O_{2}

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

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all

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Solution

The correct option is D all
$K M n O_{4}$ and $K_{2} C r_{2} O_{7}$ shows colour due to d-d electron transition in d-orbitals.
$K O_{2}$ Potassium superoxide is a yellow paramagnetic solid that is air and moisture sensitive. It shows colour due to charge transfer complex.

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Similar questions

K M n O_{4}, K_{2} C r_{2} O_{4}, K_{2} C r O_{4}, C r O_{2} C l_{2}, H g I_{2}, B i I_{3}, P b I_{2}

(I)

{[M n {(O H)}_{2}]}^{2 -}

(I I)

{M n O}_{4}^{2 -}

(I I I)

{M n O}_{2}

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{K M n O}_{4}

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

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K M n O_{4}

d - d

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