SAT II Chemistry Exam Prep

Category - Multiple Choice

Which of the following compounds is classified as amphoteric?
  1. H2O
  2. HCl
  3. NaOH
  4. HClO4
  5. HI
Explanation
Answer: H2O

An amphoteric species can act as both an acid and a base. In the context of the question, H2O is the only compound that is not a strong acid or base. Therefore, it must be the amphoteric compound.
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