Question

By adding alum in the water, the rate of sedimentation:

• A. increases
• B. decreases
• C. first increases then decreases
• D. remains same

Answer 1

The correct option is A increases

By using alum in the water, the rate of sedimentation can be increased. This process is called 'Loading'. Here all the insoluble solid particles of the mixture get accumulated on alum leading to the separation of solid from insoluble solid particles.