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Calculate EAN of the metal in complexes ...

Calculate EAN of the metal in complexes (a) `Fe(C_(2)O_(4))_(3)^(3-)` and (b) `CO(NO_(2))_(6)^(3-)`

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`Fe(C_(2)O_(4))_(3)^(3-)`the ligand `C_(2)O_(4)^(2-)` is a bidentate ligand and oxidation no. of metalis +3
`therefore` Electrons lellin`Fe^(3+) - 23`
Electrons gained from 3 bidentate ligands = 12
`thereforeEAN = 23+ 12 =35`
(b) For Co atomic number = 27
Electrons lost =3
Electrons gained from `6 ligands = 12impliesEAN = 36`
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