Question

Silver containing ore can be converted into silver in cyanide process.

If true enter 1, else enter 0.

Answer 1

Silver containing ore can be coverted into silver in cyanide process.
In the metallurgy of silver and that of gold, the respective metal is leached with a dilute solution of NaCN and KCN in the presence of air (oxygen) from which the metal is obtained later by replacement:
$4A{g}^{+}+8C{N}^{-}+2H_{2}O+O_2\to {\underset{\left(a\right)}{4\left[Ag\right(CN{)}_2]}}^{-}+4OH-$$2\left[Ag\right(CN{)}_2{]}^{-}+Zn\to Ag+{\underset{\left(b\right)}{\left[Zn\right(CN{)}_4]}}^{2-}$