NEET Chemistry Coordination Number Assertion Reason Question
Assertion (A): The coordination number of a central metal atom in a coordination compound is the number of ligand donor atoms to which the metal is directly bonded.
Reason (R): In the coordination entity [Co(NH3)6]3+, the coordination number of cobalt is 6 because it is bonded to six ammonia molecules.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false.
Correct Answer
Detailed Explanation
The coordination number is determined by the number of ligand donor atoms directly bonded to the central metal atom. In [Co(NH3)6]3+, cobalt is surrounded by six ammonia molecules, making the coordination number 6.
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