Question

In a chemical reaction iron is unable to displace Zinc from zinc sulphate. Why? Whereas Iron

displaces copper from copper sulphate. How? Also write the changes in color observed​

Answer 1

Answer:

Iron being more reactive than copper will displace copper from its salt and form a subsequent salt of ferrous sulphate. During the reaction, the colour of copper sulphate [blue] will change to greenish-blue {ferrous sulphate}. This is an example of a Displacement reaction whereas on the other side iron is less reactive than Zinc hence no reaction takes place.

Explanation:

-Fe(s)+CuSO (aq) ⟶FeSO. (aq) +Cu(s)

4. 4

-Fe+ZnSO. ⟶no reaction

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