Question

1. What is galvanisation? for class 7​

Answer 1

Answer:

Galvanisation is a process of applying a thin coat of zinc on the surface of the iron sheets so as to prevent it from rusting.

Explanation:

Galvanisation or galvanization (or galvanizing as it is most commonly called) is the process of applying a protective zinc coating to iron or steel, to prevent rusting. The most common method is hot dip galvanizing, in which steel sections are submerged in a bath of molten zinc.

Answer 2

Galvanization is the process of preventing rust by applying a protective zinc coating to steel or iron.

Explanation:

• It prevents corrosive substances from reaching the underlying steel or iron by creating a barrier between them.
• The zinc serves as a sacrificial anode, which means even if the coating is scratched, the exposed steel will still be protected by the remaining zinc.
• The zinc surface reacts with the atmosphere to form a compact, adherent patina that is insoluble in rainwater.