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 :
B. A-III, B-I, C-IV, D-II
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 forms a trigonal bipyramidal geometry with dsp^3 hybridization. Therefore, the correct matching is A III, B I, C IV, D II. Answer: A-III, B-I, C-IV, D-II
Related: Chemistry — Coordination Compounds · All PYQ Banks