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