Question

What is Ferric Oxide???

Answer 1

It is iron II Oxide....

Answer 2

Generally When Metals react with oxygen ( O2 ) to form Metallic oxides...

for Example :
Mg ( Magnesium ) + O2 ( oxygen ) => MgO ( Magnesium oxide )

Metal oxides are basic in nature and are simply Rust..

Simillary ferric oxides is a metal oxides and it is formed when Hydrated salt => Iron sulphate heptahydrate ( FeSO4 . 7H2O ) is heated it first looses its water of crystallisation and its green colour...it become anhydrous salt which is just a white powder ( Iron sulphate - FeSO4 )...When this anhydrous salg is being heated , it decomposes into ferric oxide ( Brown in colour ) , Sulphr di-Oxide and Sulphur tri - oxide..

Reaction :
FeSO4 . 7H2O ( Ferrous Sulphate heptahydrate )+ Heat => FeSO4 ( Ferrous Sulphate ) + Heat =>
Fe2O3 ( Iron (III) oxide or Ferric Oxide ) + SO2 ( Sulphur - di - oxide ) + SO3 ( Sulphur - tri - oxide )

Simply Ferric oxide is a oxides of metal which is basic in nature...it is formed by thd thermal decomposition of Iron Sulphate heptahydrate or hydrated salt...