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10th Class Science Chemical Reactions and Equations Question Bank 10th CBSE Science Chemical Reactions and Equations

  • question_answer
      [CBSE Delhi 2009] Give one example of a combination reaction which is also exothermic.

    Answer:

       [CBSE Delhi 2009}                 When quicklime or calcium oxide (CaO) reacts with water, slaked lime [Ca(OH)2 is formed. During this reaction a large amount of heat is released. So, this reaction is an exothermic reaction.                                                            


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