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Are ore gives carbon dioxide on treatment with a dilute acid. What steps will you take to convert such a concentrated ore into free metal?

Answer»

Solution :A metal CARBONATE REACTS with a dilute acid to from carbon dioxide. Therefore, this ore is a carbonate ore. Carbonate ore is converted into free metal in the FOLLOWING two STEPS:
(i) Calcination: the carbonate ore is strongly heated in the absence of AIR to get the metal oxide.
Metal carbonate `to^(Calcination)` Metal oxide +Carbon dioxide
(ii) Reduction: The metal oxide is reduced with carbon to get free metal.
Metal oxide +`Carbon_((Coke)) to^(Reduction)`+Metal+Carbon monoxide.


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