Answer: The chemical formula for phosphorous acid is [tex]H_3PO_3[/tex]
Explanation:
An acid is defined as the substance which releases hydrogen ions on dissolving in water.
Phosphorous acid is an acid which is formed by the combination of hydrogen ions [tex](H^+)[/tex] and phosphite ion having formula [tex]PO_3^{3-}[/tex]
By criss-cross method, the oxidation state of the ions gets exchanged and they form the subscripts of the other ions. This results in the formation of a neutral compound.
Hence, the chemical formula for phosphorous acid is [tex]H_3PO_3[/tex]
