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Coordination Compounds
Coordination Number and Denticity
1 question from 1 paper, each with its answer.
- question
- 1
- paper
- 1
- of Coordination Compounds
- 0.96%
Concepts tested
- Bidentate oxalate ligand
All Questions
2001 AIPMT 1 question
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Coordination number of Ni in $[Ni(C_2O_4)_3]^{4-}$ isThe oxalate ion, $C_2O_4^{2-}$, is a bidentate ligand: it binds to the metal through two oxygen atoms.
There are three oxalate ligands, each forming two bonds with Ni.
Coordination number $= 3 \times 2 = 6$
(Charge check: $x + 3(-2) = -4 \Rightarrow x = +2$, so Ni is $Ni^{2+}$.)