Chemistry - Metallurgy Question with Solution | TestHub

Cryolite and fluorspar are added to molten alumina during the extraction of aluminum

Native Ag forms a water-soluble complex with a dilute aq. solution of NaCN in presence of air

Calcium can be obtained by electrolysis of an aqueous solution of its salt

${\mathrm{Cu}}_2\mathrm{O}$ can be reduced by carbon to form copper metal