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Which metal is extracted using a hyddrom...

Which metal is extracted using a hyddrometallurgical process involving complexation ?

A

Mg

B

Au

C

Sn

D

Zn

Text Solution

Verified by Experts

The correct Answer is:
2
`4Au+8CN^(-)+2H_(2)Orarr4[Au(CN)_(2)]^(-)("soluble complex")+4OH^(-)`
`2[Au(CN)_(2)]^(-)+Znrarr2Au[Zn(CN)_(4)]^(2-)`
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