Question

the blue colour of copper sulphate solution changes into light green due to formation of which substance​

Answer 1

Answer:

Iron Nail

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.

Answer 2

Answer:

The blue colour of Copper sulphate changes into light green due to the formation of Ferrous sulphate. It happens during the displacement reaction of iron with copper sulphate in which iron displaces copper from copper sulphate and takes it place. Copper gets deposited on the silver metal strip.