Describe how crystals of copper sulphate are prepared

cbse
cbse-class-7-science
chemical-changes
physcial-and

#1

Describe how crystals of copper sulphate are prepared.

Answer:

  1. Take a cupful of water in a beaker and add a few drops of dilute sulphuric acid.
  2. Heat the water.
  3. When it starts boiling, add copper sulphate powder slowly while stirring continuously.
  4. Continue adding copper sulphate powder till no more powder can be dissolved.
  5. Filter the solution.
  6. Allow it to cool. Do not disturb the solution when it is cooling.
  7. Crystals of copper sulphate will be seen at the bottom of the beaker.