[Co(C 2 O 4 ) 3 ] 3– is a diamagnetic complex because

Chemistry · Class 12 · CBSECoordination Compounds

[Co(C2O4)3]3– is a diamagnetic complex because
  1. C2O4 2– is strong field ligand hence causes pairing of electrons
  2. C2O4 2– is a bidentate ligand hence causes pairing of electrons
  3. Co is a strong central atom hence in all complexes of Co electrons are paired.
  4. C2O4 2– is a strong field ligand hence causes splitting of d-orbitals.

Answer

(A) C 2 O 4 2– is strong field ligand hence causes pairing of electrons

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