What is iron coated with a layer of zinc called?

Give a reason to explain:
$(i)$ Why do aluminium sheets not corrode easily?
$(ii)$ Why is a copper vessel covered with a green coating in the rainy season?

$A$ metal $X$ acquires a green colour coating on its surface on exposure to air.
$(i)$ Identify the metal $X$ and name the process responsible for this change.
$(ii)$ Name and write the chemical formula of the green coating formed on the metal.
$(iii)$ List two important methods to prevent this process.

State two ways to prevent the rusting of iron.

Which of the following methods is suitable for preventing an iron frying pan from rusting?

Galvanisation is a method of protecting iron from rusting by coating with a thin layer of :