Home
Class 12
CHEMISTRY
Iron forms a sulphide with the formula F...

Iron forms a sulphide with the formula `Fe_(7)S_(8)`. Iron exist in both +2 and +3 oxidatioin states. The ratio of Fe(II) atoms to Fe(III) atoms is:

A

`3:4`

B

`4:3`

C

`2:5`

D

`5:2`

Text Solution

Verified by Experts

The correct Answer is:
D
Let `Fe^(+2)="x moles"`
then `Fe^(+3)=(7-x)" moles"`
`(x)(+2)+(7-x)(+3)+8(-2)=0`
x= 5
Promotional Banner

Similar Questions

Explore conceptually related problems

Oxidation state of iron in Fe(CO)_(4) is

The oxidation state of Fe in Fe_(3)O_(8) is

Manetite, which has the formula Fe_(2)O_(3) is comprised or iron(II) oxide and iron (III) oxide. What is the ratio of iron(II) ions to iron(III) ions in magnetiude.

Oxidation state of iron in Na[Fe(CN)_(5)(NO)] is

Iron oxide has formula Fe_(0.94)O . What fraction of Fe exists as Fe^(+3) ?

What is the O.N of Fe in iron (III) suplhate?

The oxidation state of iron in [Fe(H_(2)O)_(5)NO]^(2+) is

Iron oxide has formula Fe_"0.94"O. What fraction of Fe exists as Fe^(+3) ?