Sulfuric acid molecules contain covalent bonds. As intermolecular bonds, hydrogen bonds are also present in the sulfuric acid molecules. It should not be mistaken that there are ionic bonds in this molecule, though it dissociates into ions in the aqueous medium.
Sulfurous acid H2SO3 is a weak di-protic acid.
Dihydrogen Sulfur Trioxide or sulfurous acid
H2SO4 is the chemical formula of sulphuric acid.
Sulfurous Acid is the name given to this solution. It cannot be isolated because the acid drives away the sulfur dioxide leaving water.
Sulfurous acid: sulfite, (SO3)-2 Chlorous acid: chlorite, (ClO2)-
It will tell how acidic or basic (or how stable) sulfurous acid is.
Sulfurous Acid
H2SO3 is sulfurous acid.
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Sulfurous acid is the common name. That chemical is merely sulfur dioxide dissolved in water and is classified as a very strong acid.
Carboxylic Acids are polar therefore benzoic acid is a polar molecule.
H2so3