| \[4M+8C{{N}^{-}}+2{{H}_{2}}O+{{O}_{2}}\to \] \[4{{[M{{\left( CN \right)}_{2}}]}^{-}}+4O{{H}^{-}}\] |
| Identify the metalM. It is |
A) copper
B) iron
C) gold
D) zinc
Correct Answer: C
Solution :
[c] This is cyanide process for gold (M = Au).
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