Name the main ore of mercury. How is mercury obtained from its ore? Give balanced chemical equation.
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Answer:
The main ore of Mercury is Cinnabar [ HgS ].
1] The ore Cinnabar is concentrated by removing the gaunge.
2] Then it is roasted in air [equation.1]
3] Then it is heated at high temperature of about 300°C to get decomposed into pure Mercury [ equation.2]
Explanation:
Equation. 1
2HgS +3O_2 -> 2HgO + 2SO_2
Equation.2
2HgO -> 2Hg + O_2
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