Chemistry - Metallurgy Question with Solution | TestHub
ChemistryMetallurgyEllingham diagram & Reduction methods, Refining of metalMedium2 minQB
ChemistryMediumnumerical
How many metals are commercially obtained by auto reduction?
Pb, Sn, Cu, Hg, Au, Mg, Na, Al
Answer:
3.00
Solution:
The metals obtained by auto-reduction from the given list are Pb, Cu, and Hg. Auto-reduction (or self-reduction) is a metallurgical process where a sulfide ore is roasted to partially convert it to oxide, which then reacts with the remaining sulfide to produce the metal. This method is applicable to less electropositive metals.
Stream:JEESubject:ChemistryTopic:MetallurgySubtopic:Ellingham diagram & Reduction methods, Refining of metal
⏱ 2mℹ️ Source: QB
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