Chemistry-Coordination Number

NEET Chemistry Coordination Number MCQ Question

Type: MCQ-numerical-Hard-Class 12

In the coordination complex [Fe(C2O4)3]3-, what is the coordination number of the central metal ion?

A

6

B

4

C

3

D

8

Correct Answer

Option A

Detailed Explanation

The coordination number is determined by the number of ligand donor atoms bonded to the central metal ion. In [Fe(C2O4)3]3-, C2O4 is a bidentate ligand, meaning each oxalate ion coordinates through two donor atoms. Since there are three oxalate ions, the coordination number is 6.

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