1.

Which of the following correct?

Answer»

`Ti(NO_(3))_(4)` is coloured
`[CR(NH_(3))_(6)]Cl_(3)` is colourless
`K_(3)[VF_(6)]` is colourless
`[Cu(NC CH_(3))_(4)] [BF_(4)]` is colourless

Solution :`[Cr(NH_(3))_(6)]Cl_(3), Cr^(+3)=3d^(3)` coloured


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