<Tr> <Td> </Td> <Td> </Td> </Tr> <P> The chlorite ion, or chlorine dioxide anion, is ClO − 2 . A chlorite (compound) is a compound that contains this group, with chlorine in oxidation state + 3 . Chlorites are also known as salts of chlorous acid . </P> <P> The free acid, chlorous acid HClO, is the least stable oxoacid of chlorine and has only been observed as an aqueous solution at low concentrations . Since it cannot be concentrated, it is not a commercial product . The alkali metal and alkaline earth metal compounds are all colorless or pale yellow, with sodium chlorite (NaClO) being the only commercially important chlorite . Heavy metal chlorites (Ag, Hg, Tl, Pb, and also Cu and NH + 4) are unstable and decompose explosively with heat or shock . </P> <P> Sodium chlorite is derived indirectly from sodium chlorate, NaClO . First, the explosively unstable gas chlorine dioxide, ClO is produced by reducing sodium chlorate in a strong acid solution with a suitable reducing agent (for example, sodium chloride, sulfur dioxide, or hydrochloric acid). </P>

Give the name and formula for the acid derived from the following anion chlorite