You are now familiar with different types of solutions.
Unsaturated and supersaturated solutions of copper sulphate are prepared in separate beakers and a crystal of copper sulphate is dipped into each one of them. What would be the observation after a day? Give reasons.

You are now familiar with different types of solutions. How will you prepare a supersaturated solution of common salt?

You are now familiar with different types of solutions. What is the difference between saturated and super saturated solutions?

What are the changes that can be observed with the iron rod and the colour of copper sulphate solution?

a) What are the changes that can be observed with the iron rod and the color of copper sulphate solution if iron rod is dipped in copper sulphate solution? b) Write the equation of the oxidation and reduction reactions. c) What will be the change if silver rod is used instead of iron rod? What is the reason?

Give reasons for the following: Copper is conducting as such while copper sulphate is conducting only in molten state or in aqueous solution.

A farmer prepared 1% solution of copper sulphate using iron rod as the stirrer for preparing Bordeaux mixture. Next day he notices that the blue color almost disappeared and the iron get coated with reddish brown material. a) What is the reddish brown material deposited on the iron rod?

A farmer prepared 1% solution of copper sulphate using iron rod as the stirrer for preparing Bordeaux mixture. Next day he notices that the blue color almost disappeared and the iron get coated with reddish brown material. b) Account for the color change of the solution.

A farmer prepared 1% solution of copper sulphate using iron rod as the stirrer for preparing Bordeaux mixture. Next day he notices that the blue color almost disappeared and the iron get coated with reddish brown material. c) Justify that the above phenomenon is a redox reaction.