(A) Roasting is the process of heating the ore strongly in the presence of excess air. It is generally carried out in a reverberatory furnace or a bla

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(A) Roasting is the process of heating the ore strongly in the presence of excess air. It is generally carried out in a reverberatory furnace or a blast furnace. Since a reverberatory furnace is not listed,and blast furnaces are commonly used for roasting sulfide ores,the most appropriate answer among the choices is $A$.