JAMB - Chemistry (2021 - No. 29)
The only metal that is anti-bacterial is?
Iron
Sodium
Alluminium
Copper
Explication
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.