Question

Obtaining green colour while dipping iron nails in copper sulphate solution is due to formation of

(A) Iron sulphate
(B) Iron chloride
(C) Iron oxide
(D) Iron nitrate​

Answer 1

Answer:

When an iron nail immersed in the solution of copper sulphate than iron displaces copper from the solution of copper sulphate because iron is more reactive than copper. Therefore copper sulphate solution colour changes from blue to pale green.

Explanation:

Answer 2

Answer:

Fe(s)+CuSO4 ⟶Cu(s)+FeSO  4

​ When an iron nail is dipped in copper sulphate solution, a brown coating of copper is formed on the surface of iron and the colour of copper sulphate solution changes from blue to light green. This reaction shows that iron is more reactive than copper as it displaces copper from its solution and iron passes into solution as Fe2+  ions and iron sulphate solution are formed.

ans - iron sulphate