Question

Is sulfur dioxide (SO2) an acidic or basic oxide?

Answer 1

Sulfur dioxide (SO₂) is classified as an acidic oxide. It can react with water to form sulfurous acid (H₂SO₃), which is an acid. In general, acidic oxides are oxides of non-metals that can react with water to form acidic solutions or with bases to form salts. Therefore, SO₂ fits this definition and is considered an acidic oxide.