Describe briefly the method to obtain mercury from cinnamar. Write the chemical equation for the reaction involved in the process.

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Solution

$H g S + O_{2} ⟶ H g + S O_{2}$
or, $H g S + F e ⟶ H g + F e S$
or, $4 H g S + 4 C a O ⟶ 4 H g + 3 C a S + C a S O_{4}$

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Describe briefly the method to obtain mercury from cinnamar. Write the chemical equation for the reaction involved in the process.

HgS+O2⟶Hg+SO2or, HgS+Fe⟶Hg+FeSor, 4HgS+4CaO⟶4Hg+3CaS+CaSO4

$H g S + O_{2} ⟶ H g + S O_{2}$
or, $H g S + F e ⟶ H g + F e S$
or, $4 H g S + 4 C a O ⟶ 4 H g + 3 C a S + C a S O_{4}$