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[NiCl4]2– is paramagnetic while [Ni(CO)4] is diamagnetic though both are tetrahedral. Why?

[NiCl4]2– is paramagnetic while [Ni(CO)4] is diamagnetic though both are tetrahedral. Why?

Grade:9

1 Answers

Sunil Kumar FP
askIITians Faculty 183 Points
9 years ago
in [NiCl4]2- and Ni(CO)4 nickel is in +2 and 0 oxidation state.in the presence of CO ligand the unpaired d electron of Ni pair up but Cl- being a weak ligand is unable to pair up the unpaired electron

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