Question

give reason why carbonate and sulphide Ores are converted into oxides prior to reduction in the process of extraction

Answer 1

B) Carbonate and sulphide ores are converted to oxides so that they can be easily converted into their respective metals by oxidation.

Answer 2

because the metal which found with carbonates and sulphates are very reaction in nature eg. calcium etc so they cannot found in free form so we took the held of calcination and roasting like process to extract them easily