Question
Question: A coagulating agent frequently added to water to remove the suspended and colloidal impurities is....
A coagulating agent frequently added to water to remove the suspended and colloidal impurities is.
A
Mohr salt
B
Alum
C
Bleaching powder
D
Copper sulphate
Answer
Alum
Explanation
Solution
Alum is a coagulating agent, frequently added to water to remove impurities from water because impurities contain negative charge and alum give positive charge particle for coagulation.