When a iron nail is dipped into copper sulphate solution after sometime the colour is changed into pale green.
No colour
The solution is colorless.
The aqueous solution of ferrous sulphate is typically pale green in color.
Copper sulphate's colour is blue.
The color of ferrous sulphate solution is pale green or light green.
sulphate
Ferric sulphate solution is typically yellow in color, often ranging from pale yellow to dark amber depending on its concentration.
Why does the colour of copper sulphate solution change when an iron nail is dipped in it? When an iron nail is placed in a copper sulphate solution, iron displaces copper from copper sulphate solution forming iron sulphate, which is green in colour. Therefore, the blue colour of copper sulphate solution fades and green colour appears.
When you add copper sulphate solution to iron wool. The iron wool turns copper in color and the copper sulphate solution turns pale blue as the iron displaces the copper from the copper sulphate solution forming iron sulfate.
The copper plates out while the zinc dissolves, leaving a transparent zinc sulphate solution.
When zinc granules are placed in a copper sulfate solution, zinc will undergo a displacement reaction with copper, displacing copper ions in the solution. This reaction will result in the formation of zinc sulfate solution and solid copper. The blue color of the copper sulfate solution will fade as the reaction proceeds.
Zinc Sulphate Solution is colourless and zinc sulphate is white.