In the Mc Arthur Forest method,silver is extracted from the solution of $Na[Ag(CN)_2]$ by the use of:

Gold is extracted by a hydrometallurgical process based on its property:

The purpose of smelting an ore is to.......

Parke's process is used to extract

The extraction of aluminum from its oxide $(Al_2O_3)$ is done by:

The main reactions occurring in a blast furnace during the extraction of iron from haematite are $....$.
$(i)$ $Fe_2O_3 + 3CO \to 2Fe + 3CO_2$
$(ii)$ $FeO + SiO_2 \to FeSiO_3$
$(iii)$ $Fe_2O_3 + 3C \to 2Fe + 3CO$
$(iv)$ $CaO + SiO_2 \to CaSiO_3$