Will galvanizing metals prevent acid corrosion?

Question

will it?

Answer 1

Acid corrosion is just a form of oxidation, and if we look at reduction potentials, we can see that zinc "should not" protect against reaction with oxygen either.

However, the zinc is there to oxidize before the iron does - once the zinc is used up, the iron will start to corrode, but before that, you don't really care if the zinc corrodes or not.

Despite this, moderately concentrated acids dissolve zinc (and steel) pretty quickly, so the zinc coating will soon be used up.  It will protect against acid corrosion, but not for long, so it is not used for acidic environments.

Answer 2

While arranging the metals in the order of their increasing reactivity hydrogen (not a metal but counted in reactivity series) comes before Zinc. Hence zinc is more reactive than hydrogen and will displace it from the acids. Hence zinc will not prevent acid corrosion.

Answer 3

No! Only oxidation. Acid can easily remove the zinc coating.