Question

when an iron knife is dipped in a solution of X is turns brown after sometime. why? also identify X.​

Answer 1

Answer:

x is copper sulphate.......

Answer 2

Answer:

X is copper sulphate solution.

Explanation:

•The reaction taking place is;

Fe(s)+CuSO4⟶Cu(s)+FeSO4

•When an iron knife/ 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 ferrous sulphate solution is formed.

Hope it helped!