Galvanization is the process of coating iron with a thin layer of:
A. Silver
B. Tin
C. Zinc
D. Copper
Answer: Option C
Solution (By JKExamLibrary)
Galvanization is the process of applying a protective zinc coating to iron or steel to prevent rusting. Zinc acts as a sacrificial anode, meaning it will oxidize preferentially to iron, protecting it even if the coating is scratched and the underlying iron is exposed to moisture.
Explanation:
Minamata disease is a neurological syndrome caused by severe mercury poisoning. It was first discovered in Minamata city, Japan, due to the release of methylmercury in industrial wastewater from a chemical factory, which bioaccumulated in fish and shellfish consumed by the local population.
Explanation:
Graphite slows down fast neutrons in nuclear reactors, enabling sustained chain reaction. Diamond is hard and insulating; fullerenes are nanomaterials; charcoal is adsorbent.
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