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Chelation

The most stab...

Question

The most stable ion is:

$[F e (C_{2} O_{4})_{3}]^{3 -}$

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$[F e (C l)_{6}]^{3 -}$

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$[F e (S C N)_{6}]^{3 -}$

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$[F e (H_{2} O)_{6}]^{3 +}$

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Solution

The correct option is A
$[F e (C_{2} O_{4})_{3}]^{3 -}$

A more basic ligand and bidentate ligand form stable bond with metal ion due to chelation.

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Similar questions

[F e (H_{2} O)_{6}]^{3 +}

[F e (S C N)_{6}]^{3 -}

[F e (C_{2} O_{4})_{3}]^{3 -}

[F e C l_{6}]^{3 -}

[F e (H_{2} O)_{6}]^{3 +}, [F e (C N)_{6}]^{3 -}, [F e (C_{2} O_{4})_{3}]^{3 -}

[F e C l_{6}]^{3 -}

{[F e (H_{2} O)_{6})]}^{3 +}

{[F e {(C N)}_{6}]}_{6}^{3 -}

{[F e {(C_{2} O_{4})}_{3}]}_{3}^{3 -}

{[F e {(C l)}_{6}]}_{6}^{3 -}

[F e (H_{2} O)_{6}]^{3 +}

[F e (N H_{3})_{6}]^{3 +}

[F e (C_{2} O_{4})_{3}]^{3 -}

[F e C l_{6}]^{3 -}

Amongst the following, the most stable complex is

(i) [Fe(H₂O)₆]³⁺

(ii) [Fe(NH₃)₆]³⁺

(iii) [Fe(C₂O₄)₃]^3-

(iv) [FeCl₆]^3-

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