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

  • question_answer
    Which one of the following types of reactions is the reaction between barium hydroxide and ammonium chloride?

    A) Endothermic reaction

    B) Exothermic reaction                       

    C) Combustion reaction

    D) Both [a] and [b]

    E) None of these

    Correct Answer: A

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