Question

Why h3po2 behave as a monoprotic acid

Answer 1

H3po2 behave as a monoprotic acid because it donates only one proton or hydrogen atom per molecule in aqueous solution.

Answer 2

Answer: Because it donate one proton when dissolved in water.

Explanation: Hypo phosphorous acid is an acid as it dissolves in water to form hydrogen ions. It is monoprotic means it donate one  $H^+$ ion when dissolved in water though it contains three hydrogen atoms.

It is because only one of the hydrogen is acidic which is bonded to oxygen. The hydrogens directly attached to phosphorous are not acidic and thus cannot be donated.

$H_3PO_2\rightarrow H^++H_2Po2^-$