9th Class Science Sample Paper Science Olympiad Model Test Paper-12

  • question_answer
    What is the chemical formula of calcium carbonate?

    A) \[CaO\]

    B) \[CaC{{O}_{3}}\]

    C) \[{{O}_{3}}Zn\]

    D) \[CuS{{O}_{4}}\]

    E) None of these

    Correct Answer: B


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