1.

In the equation 4M+8CN^(-)+2H_(2)O+O_(2) rarr 4[M(CN)_(2)]^(-)+4OH^(-) Identify the metal M

Answer»

Copper
Iron
Gold
Zinc

Solution :`4 AU+8 CN^(-)+2 H_(2)O+O_(2) RARR 4[Au(CN)_(2)]^(-)+4OH^(-)`.


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