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3 moles of a mixture of FeSO(4) and Fe(2...

3 moles of a mixture of `FeSO_(4)` and `Fe_(2)(SO_(4))_(3)` required 100 mL of 2 M `KMnO_(4)` solution in acidic medium. Hence, mole fraction of `FeSO_(4)` in the mixture is

A

`(1)/(3)`

B

`(2)/(3)`

C

`(2)/(5)`

D

`(3)/(5)`

Text Solution

Verified by Experts

The correct Answer is:
A
Let moles of `FeSO_(4)=x`
eq. `FeSO_(4)` = eq. `KMnO_(4)`
`x xx1=0.1xx2xx5impliesx=1`
`therefore` mole fraction =1/3
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