Chemistry - Metallurgy Question with Solution | TestHub

Pyrolusite - ${\mathrm{MnO}}_2$, Malachite -

${\mathrm{CuCO}}_3\cdot \mathrm{Cu}(\mathrm{OH}{)}_2$, Diaspore -

${\mathrm{Al}}_2{\mathrm{O}}_3\cdot {\mathrm{H}}_2\mathrm{O}$, calamine - ${\mathrm{ZnCO}}_3$,

Cassiterite - ${\mathrm{SnO}}_2$ siderite -${\mathrm{FeCO}}_3$,

Cerussite - ${\mathrm{PbCO}}_3$, pyrite - ${\mathrm{FeS}}_2$,

Dolomite - ${\mathrm{MgCO}}_3\cdot {\mathrm{CaCO}}_3$, Magnesite -

${\mathrm{MgCO}}_3$