Question

. When an iron nail is dipped in the aqueous solution of copper sulphate; the colour of the solution turns green. This green colour is due to

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

Answer 2

Answer:

iron nail dipped into aqueous solution