Alumino-thermic process is used for the extraction of metals,whose oxides are

Observe the following statements:
Statement-$I$: The choice of reducing agent for the reduction of an oxide ore can be predicted by using Ellingham diagram,a plot of $\Delta G^{\ominus}$ vs $T$.
Statement-$II$: According to Ellingham diagram,metal oxide with higher $\Delta G^{\ominus}$ is more stable than the oxide with lower $\Delta G^{\ominus}$.

Formation of metallic copper from the sulphide ore in the normal thermo-metallurgical process essentially involves which one of the following reactions?

The Bessemer converter is used in the manufacture of:

To obtain silver from silver amalgam,it is heated in a vessel which is made of

In the blast furnace,the reduction of iron oxide is carried out by which of the following?