auto-reduction process is usedin the extraction ofa)Cu and Hgb)Zn and Hgc)Cu and Ald)Fe and Pb
christopher , 6 Years ago
Grade 11
Inorganic Chemistry> auto-reduction process is used in the ext...
2 Answers
Varon
Last Activity: 6 Years ago
Hello christopher,
Oxides of metals less reactive than being less stable will undergo auto reduction
So Copper and Mercury will undergo auto reductiion
Raghulal Prajapati
Last Activity: 6 Years ago
option (a) is correct .
explanation.:
Blast of air converts Cu2S partly into Cu2O which reacts with remaining Cu2S to give molten copper.
2Cu2 S + 3O2 → 2Cu2 O + 2SO2
2Cu2O + Cu2 S → 6Cu + SO2 . (self reduction)
Blast of air converts Cu2S partly into Cu2O which reacts with remaining Cu2S to give molten copper.
2Cu2 S + 3O2 → 2Cu2 O + 2SO2
2Cu2O + Cu2 S → 6Cu + SO2 . (self reduction)
and for Hg
th sulphide ore (cinnabar ) is heated in a current of air when the following rxn takes place.
2HgS + 3O2→2Hgo + 2SO2
2HgO + HgS→ 3Hg + SO2 ( self reduction)
th sulphide ore (cinnabar ) is heated in a current of air when the following rxn takes place.
2HgS + 3O2→2Hgo + 2SO2
2HgO + HgS→ 3Hg + SO2 ( self reduction)
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