Chemistry - Metallurgy Question with Solution | TestHub

Pig iron$\to$It is the most impure form of iron and contains highest proportion of carbon$(2.5-4\mathrm{\%})$, while other three are ore of metal
$\mathrm{Z}\mathrm{i}\mathrm{n}\mathrm{c}\mathrm{}\mathrm{b}\mathrm{l}\mathrm{e}\mathrm{n}\mathrm{d}\mathrm{e}\to \mathrm{Z}\mathrm{n}\mathrm{S}$
$\mathrm{B}\mathrm{a}\mathrm{u}\mathrm{x}\mathrm{i}\mathrm{t}\mathrm{e}\to \mathrm{A}{\mathrm{l}}_2{\mathrm{O}}_3.2{\mathrm{H}}_2\mathrm{O}$
$\mathrm{M}\mathrm{a}\mathrm{l}\mathrm{a}\mathrm{c}\mathrm{h}\mathrm{i}\mathrm{t}\mathrm{e}\to \mathrm{C}\mathrm{u}(\mathrm{O}\mathrm{H}{)}_2.\mathrm{C}\mathrm{u}\mathrm{C}{\mathrm{O}}_3$