Question

On immersing an iron nail in CuSO₄ solution for a few minutes, you will observe ______.

विकल्प

• No reaction takes place

• The colours of solution fades away

• The surface of iron nails acquires a black coating

• the color of the solution changes to green

Answer 1

On immersing an iron nail in CuSO₄ solution for a few minutes, you will observe the color of the solution changes to green.