what changes do you observe in the iron nail and colour of copper sulphate solution if Iron nails are dipped in CU S o4 solution for 15 minutes one marks question
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When Iron nail (Ferrum) is dipped in Copper sulphate (CuSO4) there takes reaction between them and coppersulphate change its color from blue to light green. This shows Iron is more reactive than Copper, it can replace Copper from CuSO4. CuSO4 is in blue Color and FeSO4 is in light green color.
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