Which of the following statement is incorrect ?A. Potassium amminetetracyanidonitrosoniumchromate(I) having `mu=1.73 BM` has `ds^(2)sp^(3)` hybridisation.B. `K_(3)[AlF_(6)]+BF_(3) to AlF_(3)+3K[BF_(4)]`C. `[Cr(NH_(3))_(6)]Cl_(6) and [Cu(NC CH_(3))_(4)][BF_(4)]` both are coloured.D. `[Cr(NH_(3))_(4)Cl_(2)]Br` can show ionisation isomerism with `[Cr(NH_(3))_(4)ClBr]Cl`

Which of the following statement is incorrect ?A. Potassium amminetetr

1.	Which of the following statement is incorrect ?A. Potassium amminetetracyanidonitrosoniumchromate(I) having `mu=1.73 BM` has `ds^(2)sp^(3)` hybridisation.B. `K_(3)[AlF_(6)]+BF_(3) to AlF_(3)+3K[BF_(4)]`C. `[Cr(NH_(3))_(6)]Cl_(6) and [Cu(NC CH_(3))_(4)][BF_(4)]` both are coloured.D. `[Cr(NH_(3))_(4)Cl_(2)]Br` can show ionisation isomerism with `[Cr(NH_(3))_(4)ClBr]Cl`
Answer» Correct Answer - C ( C) `[Cr(NH_(3))_(6)]Cl_(3)` is coloured as it has three unpaired electrons while `[Cu(NC CH_(3))_(4)][BF_(4)]` is colourless as Cu(I) i.e `3d^(10)` electron configuration has all electrons paired, so there is no d-d transition of electrons.

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