KCET2025ChemistryCoordination Compounds
Which of the following statements are true about [ NiCl ₄ ]²⁻ ? (a) The complex has tetrahedral geometry (b) Co-ordination number of Ni is 2 and oxidation state is +4 (c) The complex is sp ^3 hybridised (d) It is a high spin complex (e) The complex is paramagnetic
Options
- Aa,c,d and e
- Ba,b,d and e
- Cb,c,d and e
- Da,b,c and d
Correct answer
A. a,c,d and e
Step-by-step solution
[ Ni Cl ₄ ]⁻² O - S of Ni -+2 Coordination no. of Ni ⁺²-4 Cl ⁻ is weak field ligand, pairing does not take place [ NiCl ₄ ]⁻² is paramagnetic