Question:
The co-ordination number of Cr in \( [Cr(C_2O_4)_3]^{3-} \) ion is:
The co-ordination number of Cr in \( [Cr(C_2O_4)_3]^{3-} \) ion is:
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Co-ordination number is the total number of coordinate bonds formed between the central metal and ligands.
Updated On: Mar 5, 2025
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The Correct Option is D
Solution and Explanation
The \( C_2O_4^{2-} \) (oxalate) ligand is bidentate, meaning it donates two pairs of electrons to the central metal atom. Since there are three oxalate ligands, the co-ordination number of Cr is:
\[
3 \times 2 = 6.
\]
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