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9th Class Science Is Matter Around Us Pure Question Bank 9th CBSE Science Is Matter Around Us Pure

  • question_answer
               On heating calcium carbonate gets converted into calcium oxide and carbon dioxide. (i) Is this a physical or a chemical change? (ii) Can you prepare one acidic or one basic solution by using the products formed in the above process? If so, write the chemical equation involved.

    Answer:

                      (i) The phenomena given in question is a chemical change because the composition of product formed is different from the substance taken. The reaction involved is                            (1/2) (ii)Yes, (a) (1/2+1/2) (b)                  (1/2)


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