1 mole of equimolar mixture of `Fe_(2)(C_(2)O_(4))_(3)` and `FeC_(2)O_(4)` requires X moles of `KMnO_(4)` in acid medium for complete reaciton. The value of X is:

Options

A. 0.9
B. 0.6
C. 1.2
D. 0.8

Answer

A

Explanation

`Fe_(2)(C_(2)O_(4))_(3)to2Fe^(3+)+6CO_(2)+6e^(-)` (n Factor =6)
`Fe(C_(3)O_(4))toFe^(3+)+2CO_(2)+3e^(-)` (n Factor =3 )
Meqs of `[Fe_(2)(C_(2)O_(4))_(3)+Fe(C_(2)O_(4))]=0.5xx6+0.5xx3`
`=4.5 Eqs.`
=4.5 Eqs. of `KMnO_(4)`
`=(4.5)/(5)=0.9` moles of `KMnO_(4)`.