Question

Describe how crystals of copper sulphate are prepared with diagram.​

Answer 1

Explanation:

Crystals of copper sulphate are prepared as follows:

• Take a beaker filled with water and add a few drops of dilute sulphuric acid.
• Heat the water. When it starts boiling, add copper sulphate powder slowly.
• During this process stir continuously.
• Continue adding copper sulphate powder till no more powder can be dissolved.
• Filter the solution.
• Leave it for cooling.
• Slowly, the copper crystals will separate out.

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Answer 2

Answer:

Crystals of copper sulphate are prepared by the method of crystallization. The process is as follows. A cupful of water is taken in a beaker. Few drops of dilute sulphuric acid are added to this. The water is then heated and when it starts boiling, copper sulphate powder is added with stirring. Copper sulphate powder should be added on till the solution becomes saturated. It is then filtered into a china dish and allowed to cool. The solution should be kept undisturbed. Slowly, the crystals of copper sulphate separate out.