Name the metal M which is extracted on the basis of following reactions : `4M + 8CN^(-)+2H_(2)O+O_(2) rarr 4[M(CN)_(2)]^(-)+4OH^(-)` ` 2[M(CN)_(2)]^(-)+Zn rarr [Zn(CN)_(4)]^(2-)+ 2M`A. Au or AgB. HgC. NiD. Fe

Name the metal M which is extracted on the basis of following reaction

1.	Name the metal M which is extracted on the basis of following reactions : `4M + 8CN^(-)+2H_(2)O+O_(2) rarr 4[M(CN)_(2)]^(-)+4OH^(-)` ` 2[M(CN)_(2)]^(-)+Zn rarr [Zn(CN)_(4)]^(2-)+ 2M`A. Au or AgB. HgC. NiD. Fe
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Name the metal M which is extracted on the basis of following reactions : `4M + 8CN^(-)+2H_(2)O+O_(2) rarr 4[M(CN)_(2)]^(-)+4OH^(-)` ` 2[M(CN)_(2)]^(-)+Zn rarr [Zn(CN)_(4)]^(2-)+ 2M`A. Au or AgB. HgC. NiD. Fe

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