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Roasting is a process in which the ore (mostly sulphide) is heated strongly in the presence of excess of air. The heating should be done at a temperature below the melting point of the ore. `2PbS + 3O_(2) rarr A + 2SO_(2)` The name of `A` is.A. LithargeB. GalenaC. SesquioxideD. None of these

Answer» Correct Answer - A
`2PbS + 3O_(2) rarr underset((A))(2PbO) + 2SO_(2)`
Hence, `A` i.e. `PbO`, commonly known as litharge.


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