Is the acidity of hypophosphite strong or weak

1、 What is hypophosphite

Phosphorous acid is an inorganic acid with the chemical formula H3PO2, also known as hypophosphite or hydrogen hypophosphite. It has a similar structure to phosphoric acid, but only one hydroxyl group, making it a lower level phosphate.

2、 Acidity of Phosphorous Acid

Phosphorous acid has weak acidity and only partially dissociates in water to produce H2PO2 ‾ and H3O+. This is because there is a strong hydrogen bonding between the hydroxyl and acid groups (H2PO2 ‾) of hypophosphite, which results in a lower degree of ionization of H2PO2 ‾, thereby weakening the acidity of hypophosphite.