Oxidation number of iron in Hematite, Magnetite and Siderite respectively is :

Options

A. `+3,+(5)/2and +1`
B. `+2 , +1 and +3`
C. `+3,+(4)/3and +3`
D. `+3,+(8)/3and +2`

Answer

D

Explanation

In Hematite `(Fe_(2)O_(3))`, Iron present in + 3 state.
In Magnetite `(Fe_(3)O_(4))`, Iron present in `+(8)/(3)` state.
In Siderite `(FeCO_(3))`, Iron present in + 2 state.