[shehri]

Plz. tell me the Chemical formula of Magnetic Oxide.I thinks it's Fe2O3 but not sure.Thanks.

[Yggdrasil]

Wikipedia says that magnetic oxide is Fe₂O₃ (iron (III) oxide).  However, I've never heard iron (III) oxide called that.  Is it possible that you want the formula for magnesium oxide (MgO)?

[3.1415926]

Fe₂O₃ is the right formula for rust but ive never herd it been called magnetic oxide. you maybe thinking of Magnetite Fe₃O₄ it is magnetic and its an oxide of iron you can get lots of it by simple putting a magnet in sand its all the little black things that get stuck to the magnet. i do it all the time to make thermite let me know if you want to know how