NTA Abhyas JEE Main2020ChemistryChemical Bonding and Molecular StructurePractice
The complex having square planar geometry is
Options
- A[Ni CO) 4  
- BM n C l 4 2 -
- CC u C l 4 2 -
- DC u N H 3 4 2 +
Correct answer
D. C u N H 3 4 2 +
Step-by-step solution
Complex O.S HBZ Geometry Unpaired ‘e’ Magnetic property N i C O 4 0 s p 3 Tetrahadral 0 Diamagnetic M n C l 4 2 - + 2 s p 3 Tetrahadral 5 Paramagnetic C u C l 4 2 - + 2 s p 3 Tetrahadral 1 Paramagnetic C u N H 3 4 2 + Shifting of e 3 d → 4 p + 2 s p 2 Square planar 1 Paraagnetic