C-10-Q045mediumsingle_mcqHgS+O2→?\mathrm{HgS + O_2 \to ?}HgS+O2→? (স্ববিজারণ)—aHg+SO2\mathrm{Hg + SO_2}Hg+SO2bHgO + ScHgSO₄dHgCl₂