NEET Chemistry Coordination Number MCQ Question
In the diagram shown above, which complex has a coordination number of 4?
[Ni(CO)4]
[Fe(CN)6]4-
[Co(NH3)6]3+
[Cr(NH3)3(H2O)3]Cl3
Correct Answer
Detailed Explanation
The coordination number is determined by the number of sigma bonds with the central metal. [Ni(CO)4] has four CO ligands, forming four sigma bonds, hence a coordination number of 4.
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