PDF chapter test TRY NOW
Answer the following questions given below:
Karthika takes a beaker of muddy water. She adds a small amount of alum to it and stirs well. After some time, she observes that the suspended particles settle down at the bottom, leaving clearer water above.
1. What is the role of alum in this process?
2. What is the correct sequence of processes for cleaning muddy water?
Register for free to see more content