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NCERT Class XI Chemistry Hydrogen Solutions

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Question : 24 of 36
Marks: +1, -0
Write chemical reactions to show the amphoteric nature of water.
Solution:  
Water is amphoteric in nature because it can behaves both as an acid and base.
e.g. H2O(l)+NH3(aq)\mathrm{H_2O}_{(l)} + \mathrm{NH_3}_{(aq)} ⇌ OH(aq)−+NH4(aq)+\mathrm{OH}^{-}_{(aq)} + \mathrm{NH_4}^{+}_{(aq)}
H2O(l)+H2S(aq)\mathrm{H_2O}_{(l)} + \mathrm{H_2S}_{(aq)} ⇌ H3O(aq)++HS(aq)−\mathrm{H_3O}^{+}_{(aq)} + \mathrm{HS}^{-}_{(aq)}
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