Question

At ordinary temperatures the surface of some metals are covered with thin protective layers of their oxides '. Which option does follow the above statement ? (1) Fe (2 ) Mg (3) Zn (4 ) Pb​

Answer 1

At ordinary temperatures the surfaces of metals like Magnesium, Aluminium and Zinc are covered with a thin layer. This layer is important because it prevents the further oxidation of the metal and helps in protecting the metal from getting tarnished.

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