Which compound is not a monobasic acid?

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Question

(D) monobasic acid is an acid that releases only one $H^+$ ion per molecule in an aqueous solution.$H_3PO_2$ (hypophosphorous acid) is a monobasic aci

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$H_3PO_3$

Vedclass · Answer

(D) monobasic acid is an acid that releases only one $H^+$ ion per molecule in an aqueous solution.$H_3PO_2$ (hypophosphorous acid) is a monobasic acid because it has only one $P-OH$ bond.$H_3BO_3$ (boric acid) acts as a monobasic Lewis acid by accepting $OH^-$ from water $(B(OH)_3 + H_2O \rightleftharpoons [B(OH)_4]^- + H^+)$.$HCl$ is a strong monobasic acid.$H_3PO_3$ (phosphorous acid) is a dibasic acid because it contains two $P-OH$ bonds,allowing it to release two $H^+$ ions per molecule.

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$STATEMENT-1$: In water,orthoboric acid behaves as a weak monobasic acid. because
$STATEMENT-2$: In water,orthoboric acid acts as a proton donor.

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