A-LevelChemistryAtoms, molecules and stoichiometry9701/12 · Oct/Nov 2019 · Q91 Mark
When lead(II) sulfide, PbS, is heated in air, sulfur dioxide and lead(II) oxide are formed. What is the equation for the reaction between PbS and oxygen?
APbS + 2O₂ → SO₂ + PbO₂
BPbS + 2½ O₂ → SO₃ + PbO₂
CPbS + 1½ O₂ → SO₂ + PbO
DPbS + 2O₂ → SO₃ + PbO
✓ Correct answer
C: PbS + 1½ O₂ → SO₂ + PbO
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