Chemistry-Coordination Number
NEET Chemistry Coordination Number MCQ Question
Type: MCQ-conceptual-Hard-Class 12
Which of the following statements regarding coordination number is correct?
A
The coordination number is determined solely by the number of sigma bonds formed.
B
Pi bonds formed between ligands and the central atom are included in the coordination number.
C
Coordination number can exceed the number of ligands attached to the central atom.
D
The coordination number is always equal to the oxidation state of the central atom.
Correct Answer
Option A
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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