State true or false.

Galvanisation is primarily done to prevent rusting of iron and steel.

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True

False

answer is A.

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Detailed Solution

The given statement is true.
concept - Galvanizing is the process of applying a protective zinc coating to iron or steel objects to prevent corrosion.
Galvanizing is mainly done to prevent corrosion of iron and steel. In this process, the steel or iron surface is dripped and covered with molten zinc. Zinc corrosion is a slow process that extends the life of the product. After galvanizing the product would need less maintenance and thus lower maintenance costs in the mechanical industry sector.
Zinc forms a cavity that prevents corrosive substances from reaching the underlying steel or iron.
Zinc, therefore, serves as a sacrificial anode; the exposed steel will still be scratched by the remaining zinc.
Therefore, zinc protects its base metal by corroding from them.
The outer zinc layer of any galvanized material reacts with atmospheric oxygen to form zinc oxide (