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Match List-I with List-II. List-I (Complexes) A. [Ni(CO)4] B. [Cu(NH3)4]2+ C. [Fe(NH3)6]2+ D. [Fe(H2O)6]2+ List-II (Hybridisation) I. sp3 II. dsp2 III. sp3d2 IV. d2sp3

1. A-I, B-I, C-IV, D-III
2. A-I, B-II, C-IV, D-III
3. A-I, B-II, C-III, D-IV
4. A-II, B-I, C-III, D-IV

Correct answer: A-I, B-II, C-IV, D-III

Solution

The correct matches reflect the hybridization states of the complexes: [Ni(CO)4] has sp3 hybridization due to its tetrahedral geometry, [Cu(NH3)4]2+ exhibits dsp2 hybridization as it is square planar, [Fe(NH3)6]2+ shows d2sp3 hybridization in an octahedral arrangement, and [Fe(H2O)6]2+ also has sp3d2 hybridization, confirming the coordination environment.

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