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[NICL4]2- IS PARAMAGNETIC WHILE [NI(CO)4] IS DIAMAGNETIC THOUGH THOUGH BOTH ARE TETRA HEDRAL WHY?

[NICL4]2-  IS PARAMAGNETIC WHILE [NI(CO)4] IS DIAMAGNETIC THOUGH THOUGH BOTH ARE TETRA HEDRAL WHY? 
 

Grade:12

1 Answers

PRAPULPODISHETTI
669 Points
8 years ago
In Ni(CO)4, Ni is in zero oxidation state whereas in NiCl2-4 , it is in +2 oxidation state. In the presence of CO ligand, the unpaired d eletrons of NI pair up but Cl- being a weak ligand is unable to pair up the unpaired electrons.

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