Q. The formula of haematite is
Solution:
Formula
Name
$Fe _{3} O _{4}$
Magnetite
$Fe _{3} O _{3}$
Haematite
$FeCO _{3}$
Siderite
$FeS _{2}$
Pyrite
Thus, haematite is $Fe _{2} O _{3}$.
| Formula | Name |
|---|---|
| $Fe _{3} O _{4}$ | Magnetite |
| $Fe _{3} O _{3}$ | Haematite |
| $FeCO _{3}$ | Siderite |
| $FeS _{2}$ | Pyrite |