A. Iron
B. Sodium
C. Alluminium
D. Copper

Correct Answer:

Option D – Copper

Explanation

Aluminium sulfate is a salt soluble in water and is mainly used as a coagulating agent in the purification of drinking water.

Copper demonstrated the greatest antimicrobial activity. The silver coatings demonstrated the second most antimicrobial surface.

SEE ALSO  The reaction below can only attain equilibrium if?

Copyright warnings! Do not copy.