COORDINATE GEOMETRY

A coordination complex has only two stereo isomers, having octahedral coordination geometry. Identify the complex(es) among the following: [Cr(H_(2)O_5 Cl]Cl_(2)]Cl_(2),[Cr(H_2O)_(3)Cl_(3)],[Ni(NH_3)_(4)Cl_(2)],[NH_4]_(2)[NiCl_6]

The coordination number, EAN of the central metal atom and geometry of the complex ion obtained by adding CuSO_4 to excess of aqueous KCN respectively, are

What is Geometry?

Specify the coordination geometry around and the hybridisation of N and B atoms in 1 : 1 complex of BF_(3) and NH_(3) .