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A metal that exists as a liquid at room temperature is obtained by heating its sulphide in the presence of air. Identify the metal and its ore and give the reaction involved.
Answers (1)
Ans.
The only metal that exists as a liquid at room temperature is mercury (Hg).
Mercury is obtained from the sulphide ore called cinnabar (HgS).
Cinnabar (HgS) is first heated in air. This turns HgS [mercury sulphide or cinnabar] into HgO (mercury oxide); by liberation of sulphur dioxide.
The reactions involved are:
Roasting
Heating
View full answer
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