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51. NCERT Exemplar: Short answer questions XII

A metal that exists as 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.

The metal is .

\(2HgS(s)+3O_2(g)→2HgO(s)+2SO_2(g)\)
\(2HgS(s)+3O_2(g)→2HgO_2(s)+2SO_2(g)\)
\(2HgS(s)+3O_2(g)→2HgO(s)+2SO_3(g)\)

\(HgS(s)+2HgO_2(s)→3Hg(l)+SO_3(g)\)
\(HgS(s)+2HgO(s)→3Hg(l)+SO_2(g)\)
\(HgS(s)+2HgO(s)→2Hg(l)+2SO_2(g)\)

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51. NCERT Exemplar: Short answer questions XII

Exercise condition: