Question

25. Identify the type of chemical reaction and write balanced chemical equation for each of the followings

(b) Iron nails when dipped in blue copper sulphate solution, becomes brownish in colour and blue
colour of copper sulphate turns to light green​

Answer 1

When an iron nail is dipped in copper sulphate solution, a brown coating of copper is formed in the surface of iron and the colour of copper sulphate solution changes from blue to pale green. The reaction shows that iron is more reactive than copper because it displaces copper from the copper sulphate solution........