Chemistry - Metallurgy Question with Solution | TestHub
ChemistryMetallurgyPurification of Ores, Calcination and roastingMedium2 minQB
ChemistryMediumsingle choice
For the conversion of ore into their oxide, roasting process is used for how many given ores ? Sphalerite, Chalcocite , Fluorspar, Calamine, Azurite, Anglesite, Limonite, Cinnabar, Galena, Pyrolusite, Fool's gold
Options:
Answer:
B
Solution:
Roasting is used for sulfide ores. The sulfide ores listed are Sphalerite (ZnS), Chalcocite (Cu₂S), Cinnabar (HgS), Galena (PbS), and Fool's gold (FeS₂). Thus, 5 ores are roasted.
The correct answer is B.
Stream:JEESubject:ChemistryTopic:MetallurgySubtopic:Purification of Ores, Calcination and roasting
⏱ 2mℹ️ Source: QB
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