Question

why does the iron nail become brownish in colours and the blue colour of copper sulphate solution fade?

Answer 1

Heya!!!!!!!!!!


Here is the answer to your question......


When an iron nail dipped in the copper sulphate solution than iron displaces copper from the copper sulphate because iron is more reactive than copper. Therefore the colour of the copper sulphate solution changes.
The reaction involved is: 
  # Fe + CuSO4 ------FeSO4+Cu



Hope it helps.....
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