To determine the Effective Atomic Number (EAN) of the complex ion \([Co(NH_3)_6]^{3+}\), follow these systematic steps: EAN is defined as the total number of electrons surrounding the central metal ion in a coordination complex. It is calculated using the formula: \[ \text{EAN} = \text{Number of electrons on the metal ion} + \text{Number of electrons donated by the ligands} \]
Conclusion:
Therefore, the Effective Atomic Number (EAN) of \([Co(NH_3)_6]^{3+}\) is 36.
Match the following List-I with List-II and choose the correct option: List-I (Compounds) | List-II (Shape and Hybridisation) (A) PF\(_{3}\) (I) Tetrahedral and sp\(^3\) (B) SF\(_{6}\) (III) Octahedral and sp\(^3\)d\(^2\) (C) Ni(CO)\(_{4}\) (I) Tetrahedral and sp\(^3\) (D) [PtCl\(_{4}\)]\(^{2-}\) (II) Square planar and dsp\(^2\)