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Write two reactions to explain amphoteric nature of water. |
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Answer» SOLUTION :Water is amphoteric in nature . It acts as an ACID in presence of strong base and as a base in presence of strong acids. `underset("Base"_1)(H_2O_((l))) + underset("Acid"_2)(H_2S_((AQ)))to underset("Acid"_1)(H_3O_((aq))^+) + underset("Base"_2)HS_((aq))^(-)` `underset("Aacid"_1)(H_2O_((l)))+underset("Base"_2)(NH_(3(aq))) tounderset("Aacid"_2)(NH_(4(aq))^(+))+ underset("Base"_1)(OH_((aq))^(-))` Due to amphoteric character , water undergoes self IONISATION as following `underset("Acid"_1)(H_2O_((l)))+underset("Base"_2)(H_2O_((aq))) hArr underset"(Conjugate acid)" underset("Acid"_2)(H_3O_((aq))^(+))+ underset"(Conjugate acid)"underset("Base"_1)(OH_((aq))^(-))` |
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