10th Class Science Sample Paper Science Olympiad Model Test Paper-15

  • question_answer
    Which one of the following compounds contains ionic bond?

    A) \[CaO\]

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

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

    D) \[N{{H}_{3}}\]

    E) None of these

    Correct Answer: A


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