Colorless liquid
H₂SO₃, known as sulfurous acid, is classified as an acid. It is not a base, salt, or metallic oxide. Sulfurous acid contains hydrogen ions (H⁺) that can dissociate in solution, giving it acidic properties.
Dihydrogen Sulfur Trioxide or sulfurous acid
H2SO4 is the chemical formula of sulphuric acid.
H2SO3 is an acid. It is a weak acid known as sulfurous acid.
The litmus test can help determine if sulfurous acid is an acid or a base. If sulfurous acid turns blue litmus paper red, it indicates that it is an acid. This test does not provide direct information about the stability of sulfurous acid.
H2so3
H2SO3 is sulfurous acid, similar to the more famous H2SO4which is sulfuric acid.
Sulfurous acid H2SO3 is a weak di-protic acid.
Sulfurous acid is the common name. That chemical is merely sulfur dioxide dissolved in water and is classified as a very strong acid.
The correct name for the compound H2SO3 is sulfurous acid.
Sulfuric acid formula is: H2SO4
Sulfurous acid: sulfite, (SO3)-2 Chlorous acid: chlorite, (ClO2)-