1.

Select the incorrect statement ?

Answer»

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

Solution :`[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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