Which of the following species is amphoteric? A)CO₃^2- B)HCl C)NH₄⁺ D)HPO₄^2- E)NaOH

Question

Quizplus · Accepted Answer

Amphoteric species can act as both an acid and a base. HPO4^2- can act as a weak acid by donating a proton to a strong base, and can also act as a weak base by accepting a proton from a strong acid. The other options either act only as an acid (HCl) or a base (NaOH), or do not have the ability to act as either (the long chemical formula and NHS).

Which of the Following Species Is Amphoteric