JEE Main 2004Annual, Paper 1ChemistryEasyClassification of Elements and Periodicity in Properties127× since 2002Among Al₂O₃, SiO₂, P₂O₃ and SO₂ the correct order of acid strength isAOption A. SO₂ < P₂O₃ < SiO₂ < Al₂O₃BOption B. Al₂O₃ < SiO₂ < _P2O₃ < SO₂COption C. Al₂O₃ < SiO₂ < SO₂ < P₂O₃DOption D. SiO₂ < SO₂ < Al₂O₃ < P₂O₃CheckSkip · show solution