1.

Write the steps involved in the extraction of pure metals in the middle of the activity series from their carbonate ores.

Answer»

A metal is obtained from its carbonate ore by converting it into its oxide by the process of Calcination. In Calcination, the ore is heated to a high temperature in the absence of air.

ZnCO3(s) +heat→ ZnO(s)+CO2(g)

The metal oxides obtained by calcination are converted into the free metal by using reducing agents like carbon, aluminum which depend upon the reactivity of the metal.

ZnO+C→Zn+CO.

Impure Zn obtained is refined by the electrolysis process.



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