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Q.
Which one of these is not an acid salt ?
NTA AbhyasNTA Abhyas 2022
Solution:
$H_{3}PO_{4}$ is tribasic. So $NaH_{2}PO_{4}$ is acidic salt. $H_{3}PO_{2}$ is monobasic. Hence $NaH_{2}PO_{2}$ is not an acidic salt. It is a neutral salt. $NaH_{2}PO_{3}$ and $Na_{2}H_{2}S_{2}O_{7}$ are also acidic salts.