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Question: Answered & Verified by Expert
What are the geometry and magnetic behaviors of the complex NiCO4?
ChemistryCoordination CompoundsNEETNEET 2018
Options:
  • A Square planar geometry and paramagnetic.
  • B Tetrahedral geometry and diamagnetic.
  • C Square planar geometry and diamagnetic.
  • D Tetrahedral geometry and paramagnetic.
Solution:
1852 Upvotes Verified Answer
The correct answer is: Tetrahedral geometry and diamagnetic.
Electronic configuration of:

Ni→3d8 4s2



CO is strong field ligand so unpaired electrons will get paired.



sp3 hybridisation

Tetrahedral, diamagnetic.

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