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In the process of extraction of gold, ...

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

`{:(X - [Au(CN)_(2)]^(-),,,Y=[Zn(CN)_(4)]^(2-)):}`

B

`{:(X = [Au(CN)_(4)]^(3-),,,Y = [Zn(CN)_(4)]^(2-)):}`

C

`{:(X = [Au(CN)_(2)]^(-),,,Y = [ZN(CN)_(6)]^(4-)):}`

D

`{:(X = [Au(CN)_(4)]^(3-),,, Y = [Zn(CN)_(6)]^(2-)):}`

Text Solution

Verified by Experts

The correct Answer is:
A
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