1.

Name the metal M, which is extracted based on the following equation 4M+8CN+2H_(2)O+O_(2) to4[M(CN)_(2)]+4OH: 2[M(CN_(2))]^(-)+Zn to [Zn (CN)_(4)]^(2)+2M

Answer»

CUPELLATION
AU (or) Ag
Hg
Ni

Answer :B


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