1. Tardigrade
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  3. Chemistry
  4. Which of the following oxide is amphoteric?

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Q. Which of the following oxide is amphoteric?

Classification of Elements and Periodicity in Properties

Solution:

$Na _{2} O$ is basic, $SO _{3}$ and $P _{2} O _{5}$ are acidic but $Al _{2} O _{3}$ can react both with acids and bases.