what is cinnabar ? And how it is obtained
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Cinnabar (HgS) is the only important ore of Hg. It is concentrated by froth floatation method and mercury is extracted from this ore by heating it in air at 773-873 K (auto reduction). 273-873K. HgS + O2 → Hg + SO2. The mercury vapors thus obtained are condensed to give liquid metal.
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Answer:
Cinnabar (HgS) is the only important ore of Hg. It is concentrated by froth floatation method and mercury is extracted from this ore by heating it in air at 773-873 K (auto reduction). 273-873K. HgS + O2 → Hg + SO2. The mercury vapors thus obtained are condensed to give liquid metal.
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