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Question
Partial roasting of sulfide ore is done in the metallurgy of copper called ____________.
Partial roasting of sulfide ore is done in the metallurgy of copper called ____________.
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Solution
The correct option is A self/auto reduction
Auto reduction process this process is also called as auto reduction process .The sulfide ores of less electropositive metals like Hg, Pb and Cu etc. are heated in air as to convert part of the ore into oxide or suphate which then reacts with the remaining sulfide ore to give the metal and sulfur dioxide. No external reducing agent is used in this process.
Auto reduction process this process is also called as auto reduction process .The sulfide ores of less electropositive metals like Hg, Pb and Cu etc. are heated in air as to convert part of the ore into oxide or suphate which then reacts with the remaining sulfide ore to give the metal and sulfur dioxide. No external reducing agent is used in this process.
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