NEET2026ChemistryCoordination CompoundsActual
Match List I with List II : List I (Complex/ion) List II (Shape/geometry) A. [ Pt ( Cl ₂)( NH ₃)₂] I. Octahedral B. [ Co ( NH ₃)₆] Cl ₃ II. Trigonal bipyramidal C. [ NiCl ₄]²⁻ III. Square planar D. [ Fe ( CO )₅] IV. Tetrahedral Choose the correct answer from the options given below :
Options
- AA-III, B-IV, C-I, D-II
- BA-III, B-I, C-IV, D-II
- CA-IV, B-I, C-III, D-II
- DA-I, B-III, C-IV, D-II
Correct answer
B. A-III, B-I, C-IV, D-II
Step-by-step solution
For [ Pt ( Cl ₂)( NH ₃)₂] , Pt is in +2 oxidation state. Pt(II) complexes are generally square planar with dsp^2 hybridization. For [ Co ( NH ₃)₆] Cl ₃ , Co is in +3 oxidation state. With a coordination number of 6, it forms an octahedral geometry. For [ NiCl ₄]²⁻ , Ni is in +2 oxidation state ( 3d^8 ). Since Cl ^- is a weak field ligand, no pairing of electrons occurs, resulting in sp^3 hybridization and a tetrahedral geometry. For [ Fe ( CO )₅] , Fe is in 0 oxidation state. With a coordination number of 5, it for