Chemistry-Coordination Number

NEET Chemistry Coordination Number Assertion Reason Question

Type: Assertion Reason-assertion-Easy-Class 12

Assertion (A): The coordination number of cobalt in [Co(NH3)6]Cl3 is 6. | Reason (R): The coordination number is determined by the number of sigma bonds formed by ligands with the central metal ion.

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 NCERT context states that the coordination number is determined by sigma bonds. In [Co(NH3)6]Cl3, ammonia forms six sigma bonds with cobalt, giving a coordination number of 6.

Found an issue with this question?