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

Explanation

(i) Calcination (ii) Reduction (iii) Purification
(in the given sequence only)
Detailed 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.
`ZnCO_(3)(s) rarr ZnO(s) + CO_(2)(g)`
The metal oxides obtained by calcination are converted into the free metal by using reducing agents like carbon, aluminium which depend upon the reactivity of the metal.
`ZnO + C rarr Zn + CO`
Impure Zn obtained is refined by electrolysis process.