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Q.
The structure of paramagnetic nickel complex, $ [NiCl_4]^{2-} $ is
AMUAMU 2013Coordination Compounds
Solution:
In $[Ni(Cl)_4]^{2-}$ complex ion, $Ni$ is in $+2$ oxidation state. It has electronic configuration $3d^8$. It is paramagnetic and $sp^3$ hybridised so the four hybridised equivalent orbitals oriented tetrahedrally