MHT CET · Chemistry · Coordination Compounds
What is the coordination number of central metal ion in \(\left[\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}\) ?
- A 2
- B 4
- C 6
- D 12
Answer & Solution
Correct Answer
(C) 6
Step-by-step Solution
Detailed explanation
Oxalate ligand (bidentate) \(\mathrm{C}_2 \mathrm{O}_4{ }^{2-}\) utilizes electron pair on each of its negatively charged oxygen atoms for linking with central metal. Hence, at a time, it coordinates with the metal ion through 2 oxygen atoms.
Therefore, on binding with 3 oxalate ions, the coordination number of \(\mathrm{Fe}^{3+}\) will be 6 .
Therefore, on binding with 3 oxalate ions, the coordination number of \(\mathrm{Fe}^{3+}\) will be 6 .
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