In open atmosphere Iron rusts, which is chemically?

کھلی ماحول میں لوہے کے رس رسوں میں ، جو کیمیائی طور پر ہے؟

Iron Hydroxide

Iron Chloride

Iron Sulphide

None of these

Iron rusts when it reacts with oxygen and water in the air, forming iron hydroxide (Fe(OH)₃).

This compound eventually dehydrates to form iron oxide, the reddish-brown rust.