10th Class Science Sample Paper Science Olympiad Model Test Paper-14

  • question_answer
    Which one of the following is an example of amphoteric oxide?

    A) \[C{{O}_{2}}\]

    B) \[S{{O}_{2}}\]

    C) \[N{{a}_{2}}O\]

    D) \[A{{l}_{2}}{{O}_{3}}\]

    E) None of these

    Correct Answer: D


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