Question

Find the number of ion(s) which are having ionizable hydrogen from the following:
$H_{2}P{O}_2^{-},HP{O}_3^{2-},H_2{P}_2{O}_7^{2-}$

Answer 1

$H_{2}P{O}_2^{-}$ has zero ionizable hydrogen.

$HP{O}_3^{2-}$ has zero ionizable hydrogen.

$H_2{P}_2{O}_7^{2-}$ has 2 ionizable hydrogen.