1.

Choose the incorrect statement(s).

Answer»

`[CO(NH_(3))_(5)(NO_(2)]Cl_(2)` is OBTAINED as the yellow form, in which the nitrate ligand is bound through oxygen (-ONO) and as the red form in which the nitrate ligand is bound through NITROGEN `(-NO_(2))`
`[Pt(NH_(3))_(2)Cl_(2)][Pt(NH_(3))_(2)Br_(2)]` is a co-ordination isomer of `[Pt(NH_(3))_(4)][PtCl_(2)Br_(2)]`
A complex with molecular formula `CoSO_(4)Br.5NH_(3)` on treatment with `AgNO_(3)` can give either white ppt or yellow precipitate
`CrCl_(3).6NH_(3)` can EXHIBIT solvate isomerism, very similar to ionisation isomerism

Solution :(a) N-donor causes greater splitting, hence lower wavelength is absorbed in case of `-NO_(2)` (violet absorbed, yellow transmitted).
While, O-donor causes lower spitting, hence, larger wavelength is absorbed in case of -ONO (green absorbed, red transmitted).
(b) `[Pt(NH_(3))_(2)Cl_(2)][Pt(NH_(3))_(2)Br_(2)]` is neutral in nature.


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