The compound H₂SO₃ is called ________.

Name: The compound H₂SO₃ is called ________.
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The compound H₂SO₃ is called sulfurous acid, as sulfur has an oxidation state of +4 in this compound. Sulfuric acid, on the other hand, has an oxidation state of +6, and the formula H₂SO₄. Hydrogen sulfide has the formula H₂S and is a gas, whereas sulfite acid is not a commonly used or recognized term.

The Compound H₂SO₃ Is Called ________