in a square planar complex of Co^+2 ion unpaired electron are present in which d orbital???

Dear Student,

Electronic configuration of Co= 3d9 4s2 Electronic configuration of Co2+ = 3d9 4s0Now, for square planar complexes electronic configuration of d9 according to CFT will bedxy2 dyz2 dz22 dxy2 dx2-y21Hence, unpaired electron is present in dx2-y2 orbital

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