NEET Chemistry Coordination Number MCQ Question
In the diagram shown above, which complex ion demonstrates a coordination number of 4 due to the dsp2 hybridization of the central metal ion?
[Ni(CN)4]2–
[Fe(C2O4)3]3–
[Co(NH3)6]3+
[PtCl2(NH3)2]
Correct Answer
Detailed Explanation
The coordination number is determined by the number of ligand donor atoms bonded to the central metal ion. [Ni(CN)4]2– has a coordination number of 4, involving dsp2 hybridization, as Ni2+ binds with four cyanide ions in a square planar geometry.
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