10th Class Science Metals and Non-metals Question Bank 10th CBSE Science Metals and Non-metals

  • question_answer     A piece of granulated zinc was dropped into copper sulphate solution. After sometime, the colour of the solution changed from blue to colourless. Why?    


                      Blue copper sulphate is converted to colourless zinc sulphate, as zinc, being more reactive, displaces  copper from  solution.     

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