The chemical formula for chlorite ion is ClO2- and the other oxy-anions of chlorine are (IUPAC names in parentheses);
ClO- : Hypochlorite ion [ Chlorate(I) ion ]
ClO3- : Chlorate ion [ Chlorate(V) ion ]
ClO4- : Perchlorate ion [ Chlorate(VII) ion ]
Chloride: Cl- Chlorite: ClO2- Chlorate: ClO3-
The chemical formula of potassium chlorate is KClO3.
Te chemical formula for sodium chlorite is NaClO2.
The acid formed by the chlorite ion (ClO₂⁻) is called chlorous acid. Its chemical formula is HClO₂. When chlorite ions react with hydrogen ions, they produce chlorous acid in solution.
The chlorite ion is a negatively charged polyatomic ion with the formula ClO2-. It contains one chlorine atom and two oxygen atoms. Chlorite ions are commonly found in disinfectants and bleaching agents.
The chemical formula for hydrogen chlorite is HClO2.
The chemical formula for lithium chlorite is LiClO2.
The chemical formula for cesium chlorite is CsClO2. It consists of one cesium atom (Cs), one chlorine atom (Cl), and two oxygen atoms (O) in the chlorite ion (ClO2).
It isn't actually the 'molecular' formula because it is not molecule you ask about, but here is the formula of the chlorite anion:ClO2- in which the oxidation state of Cl is +3 and of O it is -2 (as ever in oxy-compounds). (The acid of this base is HCLO2, name: hydrogen chlorite, or better known as chlorous acid.)
The chemical formula for ferrous chlorite is FeCl2.
The formula for lead (IV) chlorite is Pb(ClO2)4.
The chemical formula of iron(III) chlorite is Fe(ClO2)3.