10th Class Science Sample Paper Science Olympiad Model Test Paper-8

  • question_answer
    Metal carbonate on reacting with dilute acid releases which one of the following?

    A) \[{{N}_{2}}\]

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

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

    D) \[{{H}_{2}}\]

    E) None of these

    Correct Answer: B


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