Question

when iron nail is dropped in the blue solution of copper sulphate it turns green due to formation of which new substance​

Answer 1

Answer:

this is all due to the formation of ferrous sulphate.

Explanation:

CuSO4+Fe__FeSO4+Cu

Answer 2

Answer:

Iron displaces copper from the copper Sulphate

Explanation:

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.