Alum is used in which?

Alum is used in which?

  1. A. In the purification of water
  2. B. As a fertilizer
  3. C. As a disinfectant
  4. D. As an analgesic

A. In the purification of water
Alum is use as a water purifier because it coagulates the impurities. The colloidal particles are negatively charged and alum is added as a coagulant to create positively charged ions.

SIMILAR POSTS

Leave a Comment