(i) [Pt(NH3)2ClNO2]: Diamminechloridonitrito-N-platinum (II); Pt2+=5d8
Structure = Square planar;
Magnetic behaviour : Diamagnetic
(ii) [CO(NH3)4Cl2]Cl: Tetraamminedichloridocobalt (III) chloride; Co3+=3d6
Structure = Octahedral
Magnetic behaviour : Diamagnetic
(iii) Ni(CO)4; Tetra carbonyl nikel (O); Ni=3d8,4s2
Structure = Tetrahedral;
Magnetic behaviour : Diamagnetic