Chemistry-Coordination Number

NEET Chemistry Coordination Number Assertion Reason Question

Type: Assertion Reason-assertion-Hard-Class 12

Assertion (A): The coordination number of a metal in a coordination compound is determined only by the number of sigma bonds formed by the ligand with the metal. | Reason (R): Pi bonds formed between the ligand and the central atom/ion are not counted in determining the coordination number.

A

Both A and R are true, and R is the correct explanation of A.

B

Both A and R are true, but R is not the correct explanation of A.

C

A is true, but R is false.

D

A is false.

Correct Answer

Option A

Detailed Explanation

The coordination number is determined by the number of sigma bonds, not pi bonds, as stated in the NCERT context.

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