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

  • question_answer
    Which one of the following types of chemical reaction is involved in the given reaction? \[CaO(s)+{{H}_{2}}O\,(\iota )\,\to Ca{{(OH)}_{2}}(aq)+Heat\]

    A) Combination reaction

    B) Displacement reaction

    C) Double displacement reaction

    D) Decomposition reaction

    E) None of these

    Correct Answer: A


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