Which one is not an acid salt?

Options

A. `NaH_(2)PO_(4)`
B. `NaH_(2)PO_(2)`
C. `NaH_(2)PO_(3)`
D. All of the above are acid salts

Answer

D

Explanation

Salt of `S_(B)//W_(A)` are called acid salts.
a. `NaH_(2)PO_(4)` (Salt of `NaOH +H_(3)PO_(4)) (S_(B)//W_(A))`
b. `NaH_(2)PO_(2)` (Salt of `NaOH +H_(3)PO_(2)) (S_(B)//W_(A))`
c. `NaH_(2)PO_(3)` (Salt of `NaOH +H_(3)PO_(3)) (S_(B)//W_(A))`All are acid salts.