Question

Aluminum is more reactive than iron, yet it is used today for a variety of applications in which iron would corrode (cans, rain gutters, etc.). the reason for the corrosion durability of aluminum is that all aluminum products are treated with a plastic coating. aluminum does not react with oxygen. aluminum does not undergo oxidation. very unreactive aluminum oxide forms a thin layer on aluminum.

Answer 1

Aluminum is more reactive than iron

but it forms Al-oxide, that form a thin layer on the surface of Al, and protect Al from reaction with water.

Answer: Very unreactive aluminum oxide forms a thin layer on aluminum.