Which of the following is not an acid salt?

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Question

(D) An acid salt is a salt that contains at least one replaceable hydrogen atom attached to an electronegative atom (usually oxygen).$NaH_2PO_3$ conta

Vedclass · Accepted Answer

$Na_4P_2O_7$

Vedclass · Answer

(D) An acid salt is a salt that contains at least one replaceable hydrogen atom attached to an electronegative atom (usually oxygen).$NaH_2PO_3$ contains two replaceable $H$ atoms.$NaH_2PO_2$ contains two replaceable $H$ atoms.$Na_3HP_2O_6$ contains one replaceable $H$ atom.$Na_4P_2O_7$ (Sodium pyrophosphate) is a normal salt formed by the complete neutralization of pyrophosphoric acid $(H_4P_2O_7)$ with sodium hydroxide $(NaOH)$. It contains no replaceable $H$ atoms.Therefore,$Na_4P_2O_7$ is not an acid salt.

Species	Conjugate acid
$ (a) NH_{3} $	$ (i) H_{2}CO_{3} $
$ (b) HCO_{3}^{-} $	$ (ii) H_{3}O^{+} $
$ (c) H_{2}O $	$ (iii) NH_{4}^{+} $
$ (d) HSO_{4}^{-} $	$ (iv) H_{2}SO_{4} $

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Match the following species with their respective conjugate acids:

Species Conjugate acid

$ (a) NH_{3} $ $ (i) H_{2}CO_{3} $

$ (b) HCO_{3}^{-} $ $ (ii) H_{3}O^{+} $

$ (c) H_{2}O $ $ (iii) NH_{4}^{+} $

$ (d) HSO_{4}^{-} $ $ (iv) H_{2}SO_{4} $

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