Select the incorrect statement ?A. `Ag^(+)` ions with an excess of a solution containing `CN^(-)` ions form a complex having coordination number two.B. `PtCl_(3)(n^(2)-C_(2)H_(4))`, an organometallic compound is `sigma` and `pi` bonded.C. Vitamin `B_(12)` is a coordination compound of cobalt.D. `RhCl(PPh_(3))_(3)`, a Wilkinson catalyst has `sp^(3)` hybridisation and is used for the hydrogenation of alkenes.

Select the incorrect statement ?A. `Ag^(+)` ions with an excess of a s

1.	Select the incorrect statement ?A. `Ag^(+)` ions with an excess of a solution containing `CN^(-)` ions form a complex having coordination number two.B. `PtCl_(3)(n^(2)-C_(2)H_(4))`, an organometallic compound is `sigma` and `pi` bonded.C. Vitamin `B_(12)` is a coordination compound of cobalt.D. `RhCl(PPh_(3))_(3)`, a Wilkinson catalyst has `sp^(3)` hybridisation and is used for the hydrogenation of alkenes.
Answer» Correct Answer - D `[Rh(I)Cl(PPh_(3))_(3)]` has `4d^(8)`configuration. This configuration compels for the pairing of electrons leading to one orbital vacant for `dsp^(2)` hybridisation on amount of higher CFSE . It is square planar and diamagnetic.

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