Which one of the following is not an amphoteric substance?

H N O_{3}

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{H C O_{3}}^{-}

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H_{2} O

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N H_{3}

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Solution

The correct option is C $H N O_{3}$
Amphoteric substances are substances that display both acidic and basic properties, so they can act as either acids or bases. If an amphoteric substance reacts with a base, then it will take on the role of acid. If an amphoteric substance reacts with an acid, then it will take on the role of base.

${H C O_{3}}^{-}, H_{2} O, N H_{3}$ can act as both donor and acceptor to $H^{+}$ ions so they are amphoteric in nature.

$H N O_{3}$ is a strong acid and can only donate $H^{+}$ ions hence, it is not amphoteric in nature.

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Similar questions

{C O}_{3}^{2 -} + H_{2} O ⇌ {H C O}_{3}^{-} + {O H}^{-}

{C O}_{2} + H_{2} O ⇌ H_{2} {C O}_{3}

{N H}_{3} + H_{2} O ⇌ {N H}_{4} O H

H C l + H_{2} O ⇌ {C l}^{-} + H_{3} O^{+}

H_{2} O

H_{2} O

H C O_{3}^{-} + H_{2} O ⇌ {C O}_{3}^{2 -} + H_{3} O^{+}

N H_{3} + O_{2} \to N O + H_{2} O

N O + O_{2} \to N O_{2}

N O_{2} + H_{2} O \to H N O_{3} + H N O_{2}

N H O_{2} \to H N O_{3} + N O + H_{2} O

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