In the process of extraction of gold- Roasted gold ore -CN-aq-H2OO2-X-OH- -X-Zn- -Y-AuIdentify the complexes -X- and -Y-

The correct option is A [Au(CN)_2]^ , [Zn(CN)_4]^2 4Au+8 CN ^ +2 H _ 2 O+ O _ 2 ⟶ 4[ Au( CN ) #160; _ 2 ] #160; ^ +4 OH ^ 2[ Au( CN ) ...

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Cyanide or Macarthur Forrest Process

In the proces...

Question

In the process of extraction of gold, Roasted gold ore $+ C N_{(a q)}^{-} + H_{2} O_{2} [X] + [O H^{-}]$ , $[X] + Z n \to [Y] + A u$
Identify the complexes [X] and [Y].

[A u (C N)_{2}]^{-}, [Z n (C N)_{4}]^{2 -}

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[A u (C N)_{4}]^{3 -}, [Z n (C N)_{4}]^{2 -}

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[A u (C N)_{2}]^{2 -}, [Z n (C N)_{6}]^{4 -}

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[A u (C N)_{4}]^{-}, [Z n (C N)_{4}]^{2 -}

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R o a s t e d g o l d o r e + C N^{-} + H_{2} O_{2} [X] + O H^{-}

[X] + Z n ⟶ [Y] + A u

roasted gold ore + C N^{-} + H_{2} O O_{2} - \to [X] + O H^{-}

[X] + Z n \to [Y] + A u

[X]

[Y]

R o a s t e d g o l d o r e + C N^{-} + H_{2} O_{2} [X] + O H^{-}

[X] + Z n ⟶ [Y] + A u

ln

{C N}^{-} + H_{2} O_{2} [X] + {O H}^{-}

[X] +

\to [Y] +

4 A u + 8 C N^{-} + 2 H_{2} O + O_{2} \to 4 [A u (C N)_{2}]^{-} + 4 O H^{-}

2 [A u (C N)_{2}]^{-} + Z n \to 2 A u + [Z n (C N)_{4}]^{2 -}

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