Write IUPAC name of the complex [Cr(NH₃)₄Cl₂]⁺. Draw structures of geometricalisomers for this complex.

Tetraaminedichlorochromium(iii)

OR

Using IUPAC norms write the formulae for the following :

(i) Pentaamminenitrito-O-cobalt(III) chloride structure

(ii) Potassium tetracyanidonickelate(II)

IUPAC name of the complex [Cr(NH₃)₄Cl₂]⁺ is Tetraaminedichlorochromium(iii)

Two geometrical isomers exist for this complex, these are trans-isomer and cis-isomer

OR

(i) [Co(NH₃)₅ONO]Cl_2,

Here, Cobalt will act as central atom whereas other ions NH₃, ONO will act as ligand.

(ii) K₂[Ni(CN)₄],

Here, Ni will act as central atom whereas CN^- ion will act as ligand.