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प्रश्न
For the metallurgical process of which of the ores calcined ore can be reduced by carbon?
(i) Haematite
(ii) Calamine
(iii) Iron pyrites
(iv) Sphalerite
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उत्तर
(i) Haematite
(ii) Calamine
Explanation:
Oxides can be reduced by using carbon. Haematite \[\ce{(Fe2O3)}\] and calamine \[\ce{(ZnCO3 -> ZnO + CO2)}\] can be reduced by carbon.
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