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Question

Which one of the following is wrongly matched?

$[Ni(CO)_4]$ – neutral ligand

$[Cu(NH_3)_4]^{2+}$ – square planar

$[Co(en)_3]^{3+}$ – follows the EAN rule

$[Fe(CN)_6]^{3-}$ – $sp^3d^2$

Solution

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