Write the chemical reactions to show the amphoteric nature of water.

1.	Write the chemical reactions to show the amphoteric nature of water.
Answer» Water is amphoteric in nature and it behaves both as an acid as well as a base. With acids stronger than itself (eg., H₂S) it behaves as a base and with bases stronger than itself (eg. NH₃) it acts as an acid. (i) As a base: H₂O(l) +H₂S(aq) → H₃O + (aq) +HS^-(aq) (ii) As an acid: H₂O(l) +NH₃(aq) → OH^-(aq) + NH₄⁺ (aq)

Answer»

Water is amphoteric in nature and it behaves both as an acid as well as a base. With acids stronger than itself (eg., H₂S) it behaves as a base and with bases stronger than itself (eg. NH₃) it acts as an acid.

(i) As a base: H₂O(l) +H₂S(aq) → H₃O + (aq) +HS^-(aq)

(ii) As an acid: H₂O(l) +NH₃(aq) → OH^-(aq) + NH₄⁺ (aq)

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Write the chemical reactions to show the amphoteric nature of water.

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