In the equation , 4M + 8CN^(-) + 2H_(2)O + O_(2) to 4 [M(CN)_(2)]^(-) – InterviewSolution

1.	In the equation , 4M + 8CN^(-) + 2H_(2)O + O_(2) to 4 [M(CN)_(2)]^(-) + 4OH^(-),the metal M is _________.
Answer» copper iron gold zinc Answer :C

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