Question

To prevent from rusting iron is galvalized.

Answer 1

yes...
for preventing from the rusting the iron is coated with a zinc layer and the process is known as galvanization.

Answer 2

yes.

Galvanising is a method of rust prevention. The iron or steel object is coated in a thin layer of zinc. This stops oxygen and water reaching the metal underneath - but the zinc also acts as a sacrificial metal. Zinc is more reactive than iron, so it oxidises in preference to the iron object.