With $C u^{2 +}$ ions $[F e (C N)_{6}]^{4 -}$ gives $C u_{2} [F e (C N)_{6}]$ (Cupric ferrocyanide). The colour of $C u_{2} [F e (C N)_{6}]$ is?

Blue

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Green

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Brown

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White

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Solution

The correct option is C Brown
$C u_{2} [F e (C N)_{6}]$ is a brown precipitate.

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Similar questions

2 C u S O_{4} + K_{4} [F e (C N)_{6}] ⟶ A + 2 K_{2} S O_{4} . A

2 C u S O_{4} + K_{4} [F e (C N)_{6}] ⟶ A + 2 K_{2} S O_{4} . A

C u_{2} [F e (C N)_{6}]

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

{C d}^{2 +}, {C u}^{2 +}, {Z n}^{2 +}, {F e}^{3 +}, {P b}^{2 +}

{B i}^{3 +}

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