Question

25. Oxidation state of Fe in Fe304 is :​

Answer 1

Answer:

2+ and +3

Explanation:

Fe

3

O

4

contains Fe atoms of both +2 and +3 oxidation number. It is a stoichiometric mixture of Ferrous (FeO) and Ferric (Fe

2

O

3

) oxides combined as FeO.Fe

2

O

3

.

Oxidation state of oxygen in FeO and Fe

2

O

3

is -2.

Let the oxidation state of Fe in FeO and Fe

2

O

3

be x and y respectively.

As we know that the sum of the oxidation states of all the atoms or ions in a neutral compound is zero.

Therefore,

Oxidation state of Fe in FeO-

x+(−2)=0

⇒x=2

Oxidation state of Fe in Fe

2

O

3

-

2(y)+3(−2)=0

⇒2y=6

⇒y=3

Hence the oxidation number of Fe in Fe

3

O

4

are +2 and +3 respectively