Which of the following is the example of crystallisation process?
A. Purification of alum
B. Purification of sea water
C. Separation of gases from air
D. None of the mentioned
Answer:A
Which of the following is the example of crystallisation process?
A. Purification of alum B. Purification of sea water C. Separation of gases from air D. None of the mentioned
Explanation: An impure sample of alum or copper sulphate is purified by