Which of the following compound is coloured ?

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Question

The colour is due to presence of unpaired $d-$ electrons.

$Ti^{3+} = [Ar]\, 3d^1$ (one unpaired electron)

$Fe^{3+} = [Ar] \,3d^5$ (five unpaired

Vedclass · Accepted Answer

All of these

Vedclass · Answer

The colour is due to presence of unpaired $d-$ electrons.

$Ti^{3+} = [Ar]\, 3d^1$ (one unpaired electron)

$Fe^{3+} = [Ar] \,3d^5$ (five unpaired electrons)

$Co^{2+} = [Ar]\, 3d^7$ (three unpaired electrons)

So all of them are coloured.

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