Question

Give reasons Alum is added in the process of sedimentation

Answer 1

Answer:

here is your answer

alum is added in the process of sedimentation because it helps in filtering out the impurities from water making it clear and germ free...

Answer 2

Answer:

Alum increases the rate of sedimentation because,alum being an external agent causes the particles present in the container to colloid together and form heavier particles, as heavier particles sink in water these particles settle down therefore,increasing the speed of sedimentation