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CBSE Class 12-science Answered

what happens when Cu2o undergoes self reduction in silica line converter
Asked by niharikapabba2605 | 07 Aug, 2018, 11:25: AM
answered-by-expert Expert Answer

Self Reduction method: This method is also called auto-reduction method or air reduction

method. If the sulphide ore of some of the less electropositive metals like Hg, Cu, Pb, Sb, etc. are

heated in air, a part of these is changed into oxide or sulphate. Then that reacts with the remaining

part of the sulphide ore to give its metal and SO2.

2Cu2S + 3O2 → 2Cu2O + 2SO2;

2Cu2O + Cu2S → 6Cu + SO2

Answered by Ramandeep | 07 Aug, 2018, 12:40: PM
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