Give one example of amphoteric substance
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Water, amino acids, hydrogen carbonate ions and hydrogen sulfate ions are common examples of amphoteric substance
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Many metals (such as zinc, tin, lead, aluminium, and beryllium) form amphoteric oxides or hydroxides. Amphoterism depends on the oxidation states of the oxide. Al2O3 is an example of an amphoteric oxide. Amphoteric oxides also include Lead (II) oxide, and zinc (II) oxide, among many others.
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