why only iron get corrode on reacting with oxygen ?why not aluminium ,zinc does not get corrode on racing with oxygen?
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iron is very reactive as it forms rust (ferrous hydroxide), but others don't
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This happens because iron reacts with oxygen and moisture to form a compound called hydrated ferrous oxide which is also known as rust.
Similar questions
Aluminium is very good corrosion resistance. This is primarily because it spontaneously forms a thin but effective oxide layer that prevents further oxidation. this oxide is impermeable and, unlike the oxide layers on many other metals, it adheres strongly to the parent metal. Even if it is damaged by mechanical action, aluminium’s oxide layer repairs itself.