Which of the following is cationic complex?

K_{4} [F e (C N)_{6}]

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[N i (C O)_{4}]

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[C o (N H_{3})_{3} C l_{3}]

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[C u (N H_{3})_{4}] S O_{4}

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Solution

The correct option is B $[C u (N H_{3})_{4}] S O_{4}$
$K_{4} [F e (C N)_{6}] \to 4 K^{+} + [F e (C N)_{6}]^{4 -}$

$[N i (C O)_{4}]$ - No dissociation

$[C o (N H_{3})_{3} C l_{3}]$ - No dissociation

$[C u (N H_{3})_{4}] S O_{4} \to [C u (N H_{3})_{4}]^{2 +} + S O_{4}^{2 -}$

Option D is correct.

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Similar questions

K_{4} [F e (C N)_{6}]

[C u (N H_{3})_{4}] S O_{4}

F e (C O)_{5}

N i (C O)_{4}

K_{4} [F e (C N)_{6}]

N a_{3} [C u (S C N)_{4}]

E A N

F e (C O)_{s}

N i (C O)_{4}

K_{4} [F e (C N)_{6}]

N a_{3} [C u (S C N)_{4}]

E A N

Stable complex based on EAN rule:

i) $K_{4} [F e (C N)_{6}]$

ii) $[C o (N H_{3})_{5} C l] C l_{2}$

iii) $[N i (C O)_{4}]$

iv) $K_{2} [N i (C N)_{4}]$

{F e (N H}_{4})_{2} {(S O}_{4})_{2} {(H}_{2} O)_{6}

K_{4} [{F e (C N)}_{6}]

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