Question -
Of the given options, choose the combination that contains metals whose ores are most appropriate for roasting. In other words, Sulphide ores are common for which kind of metals?
Options:
A .  Ag, Cu, Pb
B .  Ag, Cu, Sn
C .  Ag, Mg, Pb
D .  Al, Cu, Pb
Answer: Option A : A Let us look at the chief ores of the given metals: Copper: CuFeS2 (chalcopyrites). Silver: Ag2S (Argentite) Lead: PbS (Galena)
Submit Your Solution hear: