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10th Class Science Sample Paper Science Olympiad Model Test Paper-4

  • question_answer
    Which one of the following type of reaction is represented by the given chemical equation? \[2Na+2{{H}_{2}}O\to 2NaOH+{{H}_{2}}\]

    A) Combination reaction

    B) Decomposition reaction

    C) Single displacement reaction

    D) Double displacement reaction

    E) None of these

    Correct Answer: C

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