Identify the reaction that does not take place in a blast furnace.

Choose the correct option with reference to the following statements:
$(1)$ Pig iron is produced at a temperature of $1270 \ K$.
$(2)$ Pig iron contains $4 \%$ carbon.
$(3)$ Pig iron cannot be cast into a variety of shapes.
$(4)$ Pig iron contains small amounts of impurities like $P, S, Si, Mn$.

Which of the following conditions favours the reduction of a metal oxide to metal?

The Ellingham diagram for zinc,magnesium,and carbon converting into corresponding oxides is shown below. At $1100 \, ^oC$,which reaction is spontaneous to a maximum extent?

The best quality of steel is manufactured by which of the following processes?

Bessemerization is used in the extraction of