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Theformulaforchlorous acidis HClO2. Chlorous acidis a weak acid with the chemical formula HClO2.It is an oxyacid, meaning that it contains hydrogen, oxygen, and another element, in this case, chlorine.Chlorous acidis a colorless, unstable, and highly reactivecompound, and it candecomposeto form other chlorinated species, such as chlorine dioxide (ClO2) and hydrochloric acid (HCl). Chlorous acid can be prepared by reacting chlorine dioxide with water or by adding acid to a chlorite salt. It is used as a bleaching agent,disinfectant, and herbicide. Although the acid is difficult to obtain in pure substance, the conjugate base, chlorite, derived from this acid is stable. One example of a salt of this anion is the well-known sodium chlorite. This and related salts are sometimes used in the production of chlorine dioxide.Learn more aboutchlorous acidhere:brainly.com/question/15084224#SPJ4...