Which of the following statements in mos...

Which of the following statements in most likely to be incorrect

`Ti(NO_(3))_(4)` is a colourless compound

`[Cu(NC.CH_(3))_(4)]^(2+)` is a colourless compound

`[Cr(NH_(3))_(6)]^(3+)3Cl^(-)` is a coloured compound

`K_(3)[VF_(6)]` is a colourless compound

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Complex species in which the metal has unpaired electrons are mostly coloured, but the converse may not be true `LnK_(3)[VF_(6)]` the central metal atom has two unpaired electrons. So it is mostly coloured. `(V^(3+):t_(2g)^(2)eg^(0))`

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Which of the following statements in most likely to be incorrect

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