Multiple choice

The scientific name of Alam used for water filtration is

  1. sodium sulphate

  2. nitric sulphate

  3. alluminium phosphate

  4. alluminium sulphate

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Alum (aluminum sulfate) is commonly used in water treatment as a coagulant to remove impurities. It causes suspended particles to clump together for easier removal through sedimentation and filtration. The correct spelling is 'aluminum' not 'alluminium'.