10th Class Science Sample Paper Science Olympiad Model Test Paper-18

  • question_answer
    Which one of the following statements is true about the chemical reaction \[CuO+{{H}_{2}}\to Cu+{{H}_{2}}O\], which takes place in the presence of heat?

    A) Copper oxide is reduced to copper

    B) Hydrogen is oxidised to water

    C) Hydrogen is being reduced to water

    D)  Both A and B

    E)  None of these

    Correct Answer: D


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