Which of the following is a chelate complex iron ?

{[C u {(e n)}_{2}]}_{2}^{2 +}

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{[C u C I_{4}]}_{4}^{2 -}

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{[C u {({N H}_{3})}_{4}]}_{4}^{2 +}

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{[C u {(C N)}_{4}]}_{4}^{3 -}

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Solution

The correct option is A ${[C u {(e n)}_{2}]}_{2}^{2 +}$

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Similar questions

Which of the following complexes formed by $C u^{2 +}$ ions is most stable?
(a) $C u^{2 +} + 4 N H_{3} \to [C u (N H_{3})_{4}]^{2 +}, l o g K = 11.6$
(b) $C u^{2 +} + 4 C N^{-} \to [C u (C N)_{4}]^{2 -}, l o g K = 27.3$
(c) $C u^{2 +} + 2 e n^{-} \to [C u (e n)_{2}]^{2 +}, l o g K = 15.4$
(d) $C u^{2 +} + 4 H_{2} O \to [C u (H_{2} O)_{4}]^{2 +}, l o g K = 8.9$