Which salt can be classified as an acid salt?

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Question

(D) An acid salt is a salt that contains at least one replaceable hydrogen atom in its structure,which can dissociate to release $H^{+}$ ions in an aq

Vedclass · Accepted Answer

$Na_2HPO_4$

Vedclass · Answer

(D) An acid salt is a salt that contains at least one replaceable hydrogen atom in its structure,which can dissociate to release $H^{+}$ ions in an aqueous solution.$Na_2HPO_4$ dissociates as follows: $Na_2HPO_4 \rightarrow 2Na^{+} + HPO_4^{2-}$.The $HPO_4^{2-}$ ion can further dissociate: $HPO_4^{2-} \rightleftharpoons H^{+} + PO_4^{3-}$.Since it can release $H^{+}$ ions,$Na_2HPO_4$ is classified as an acid salt.

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