Which of the following compounds is widely used in the manufacture of ferrites?

Option 1 : Fe2O3

• Ferrite, a ceramic-like material with magnetic properties that is useful in many types of electronic devices
• Ferrites are hard, brittle, iron-containing, and generally grey or black and are polycrystalline i.e., made up of a large number of small crystals
• They are composed of iron oxide and one or more other metals in chemical combination
• A ferrite is formed by the reaction of ferric oxide (Fe₂O_3, iron oxide or rust) with any of a number of other metals, including magnesium, aluminium, barium, manganese, copper, nickel, cobalt, or even iron itself