Which of the following compounds are diprotic?

HNO₃

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H₂PO₃

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HClO₃

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H₃PO₃

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Solution

The correct option is B
H₂PO₃

Diprotic solvents are those in which solutes will give 2 H⁺ ions or 2 OH^- ions on solvolysis. Among the given options, $H_{2} {P O}_{3}$ breaks into ions giving out two protons.
$H_{2} {P O}_{3} \to 2 H^{+ 1} + {P O}_{3}^{- 2}$

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Similar questions

Arrange the following compounds according to the increasing order of oxidation state of chlorine.

$H C l O_{4}, H C l O_{3}, H C l O_{2}, H C l O$

H C l O_{4} < H C l O_{3} < H C l O_{2} < H C l O

H C l O_{4}, H O C l, C l F_{3}, H C l O_{3}

H N O_{3}

[α]_{D} = - {52.7}^{\circ}

(H_{3} P O_{3}),

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