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

  • question_answer
      Why does the colour of copper sulphate solution change when an iron nail is dipped in it?                                                [NCERT]

    Answer:

                      Iron is more reactive than copper. It displaces copper from copper sulphate solution according to the following reaction:                 Thus, as copper sulphate reacts to form iron sulphate, the blue colour of copper sulphate solution fades.


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