Question

The pure crystals of copper sulfate are obtained by the process of crystallization.

• A. True
• B. False

Answer 1

The correct option is A True

Understanding the concept:

• The process of crystallization helps in the separation of a pure solid from a solution in its crystal form.
• This is the method that is used to purify solids. For example, the salt we obtain from the ocean might contain a lot of impurities that can be separated by this method.

Explanation: The following is the method for crystallizing copper sulfate:
1. Make a clear copper sulfate solution.
2. Dissolve 0.8g $CuS{O}_4.5H_{2}O$ in 8 mL water and add 1-2 drops ${\mathrm{H}}_2{\mathrm{SO}}_4$ to make a solution.
3. Heat the solution for a few minutes before filtering it with a filtration system.
4. Transfer the solution from the filtration machine to a separate beaker and cool to room temperature.
5. At this point, the crystals will appear.
6. Filter, wash and dry these crystals
Calculate the yield by weighing the crystals.

Conclusion: Thus the pure crystals of copper sulfate are obtained by the process of crystallization.