Which one of the following is amphoteric? A)H₂SO₄ B)H₂O₂ C)CO₂ D)H₂O E)NaOH

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Amphoteric substances can act as both acids and bases. The compound H₂O can act as an acid by donating a proton from the hydrogen ion, or as a base by accepting a proton from a water molecule. This property makes it amphoteric. The other choices are either acidic (A and B) or basic (C and E), but not capable of acting as both.

Which One of the Following Is Amphoteric