In the process of extraction of gold, Roasted gold ore `+CN^(-)+H_2Ooverset(o_2)rarr[X]+OH^(-)` `[X]+Znrarr[Y]+Au` Identify the complexes [X] and [Y]A. (a) `X=[Au(CN)_2]^(-), Y=[Zn(CN)_4]^(2-)`B. (b) `X=[Au(CN)_4]^(3-), Y=[Zn(CN)_4]^(2-)`C. (c) `X=[Au(CN)_2]^(-), Y=[Zn(CN)_6]^(4-)`D. (d) `X=[Au(CN)_4]^(-), Y=[Zn(CN)_4]^(2-)`

In the process of extraction of gold, Roasted gold ore `+CN^(-)+H_2Oov

1.	In the process of extraction of gold, Roasted gold ore `+CN^(-)+H_2Ooverset(o_2)rarr[X]+OH^(-)` `[X]+Znrarr[Y]+Au` Identify the complexes [X] and [Y]A. (a) `X=[Au(CN)_2]^(-), Y=[Zn(CN)_4]^(2-)`B. (b) `X=[Au(CN)_4]^(3-), Y=[Zn(CN)_4]^(2-)`C. (c) `X=[Au(CN)_2]^(-), Y=[Zn(CN)_6]^(4-)`D. (d) `X=[Au(CN)_4]^(-), Y=[Zn(CN)_4]^(2-)`
Answer» Correct Answer - A Roasted gold are `+CN^(-)+H_2Ooverset(O_2)rarr[Au(CN)_2]^(-)+OH` `[Au(CN)_2]^(-)+Znrarr[Zn(CN)_4]^(2-)`.

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