Chemical reaction for how mercury is extracted from its ore cinnabar
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At first cinnabar is heated in presence of air and it is converted to mercuric oxide
2HgS + 3O₂ → 2HgO + SO₂
HgO is then reduced to mercury on further heating
2HgO → 2Hg + O₂
Above chemical reactions are used in the extraction of mercury from its cinnabar(HgS) ore.
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