NEET Chemistry Coordination Number MCQ Question
Which of the following statements regarding coordination number is correct?
The coordination number is determined solely by the number of sigma bonds formed.
Pi bonds formed between ligands and the central atom are included in the coordination number.
Coordination number can exceed the number of ligands attached to the central atom.
The coordination number is always equal to the oxidation state of the central atom.
Correct Answer
Detailed Explanation
The coordination number of the central atom/ion is determined only by the number of sigma bonds formed by the ligands, as stated in the NCERT context. Pi bonds are not counted for this purpose.
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