JEE Advanced2010ChemistryCoordination CompoundsActual
The complex showing a spin-only magnetic moment of 2.82 B.M. is
Options
- ANi ( CO )₄
- B[ NiCl ₄ ]²⁻
- CNi ( PPh ₃ )₄
- D[ Ni ( CN )₄ ]²⁻
Correct answer
B. [ NiCl ₄ ]²⁻
Step-by-step solution
Ni : 3 d^8 4 s^2 Ni ²⁺: 3 d^8 Since, Cl is a weak field ligand, it doesn't cause pairing of electron. Number of unpaired electrons, n=2 = n(n+2) = 2(2+2) BM = 8 BM =2.82 BM Coordination compound Conceptual III