Question

Why is it necessary to convert carbonate and sulphide ores into oxides during the process of extraction

Answer 1

it is necessary to convert carbonate Ores and sulphide Ores into oxide during the process of extraction of metal because obtaining metals from the oxides is much easier than doing that from the metal sulphide Ore metal carbonate

Answer 2

Answer:

Sulphide ores are converted to oxides by heating in the presence of excess air. This process is known as Roasting.

Carbonates are changed into oxides by strongly heating them in limited air. The process is known as Calcination.

Carbonate and sulphide ores are usually converted into oxides during the process of extraction because extraction of metal is easier from their oxides rather than from their carbonates or sulphides.

As with the case of oxides, we simply have to use a metal more reactive than the impure metal which needs to be extracted.

Hope it helps you :)