Steel contains $.....$ percent of carbon.

In the process of extracting chromium and manganese metals from their oxides (Alumino-thermite process),aluminum is used as a ...... .

The purest form of iron is:

Which of the following reduction reactions $CANNOT$ be carried out with coke?

Regarding the basic open-hearth process,which statement is wrong?

Consider the following reactions of metallurgy:
Ore '$X$' $\xrightarrow{\text{Roasting}}$ '$Y$' + $SO_2$ $\uparrow$
Ore '$Z$' $\xrightarrow{\text{Calcination}}$ '$Y$' + $CO_2$ $\uparrow$
'$Y$' + $C$ $\xrightarrow{1673 \ K}$ '$A$' (vapour) + '$B$' $(g)$
where '$A$' and '$B$' are respectively: