A sulphide ore like `ZnS` is first roasted into its oxide prior to reduction by carbon because:

A sulphide ore is first converted into its oxide before reduction. This is done because :

A sulphide ore is first converted into its oxide before reduction. This is done because :

Explain - Sulphide ores are generally converted into oxides before reduction.

Why are sulphide ores converted to oxide before reduction ?

Assertion: Sulphide ores of Zn and Pb are generally converted into their respective oxides, prior to reduction. Reason: The zinc oxide and lead oxide are reduced by carbon to their respective free metals.