In the process of extraction of gold. Roasted gold ore `+CN^(-)+H_(2)O overset(O_(2))rarr [X]+OH^(-)` `[X]+Znrarr [Y]+Au` Identi

In the process of extraction of gold.
Roasted gold ore `+CN^(-)+H_(2)O overset(O_(2))rarr [X]+OH^(-)`
`[X]+Znrarr [Y]+Au`
Identify the complexes `[X] ` and `[Y]`.
A. ` [Au(CN)_(2)]^(-) , [Zn (CN)_(4)]^(2-)`
B. `[Au(CN)_(4)]^(3-) , [Zn(CN)_(4)]^(2-)`
C. `[Au(CN)_(2)]^(2-) , [Zn(CN)_(6)]^(4-)`
D. `[Au(CN)_(4)]^(-) . [Zn(CN)_(4)]^(2-)`

In the process of extraction of gold. Roasted gold ore `+CN^(-)+H_(2)O overset(O_(2))rarr [X]+OH^(-)` `[X]+Znrarr [Y]+Au` Identify the complexes `[X]

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