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In the above set of redox reactions, whe...


In the above set of redox reactions, where `MnO_(4)^(-1)` is the only oxidising agent, order of the required molar quantities of the reducing agents is :

A

`n_(1) lt n_(2) lt n_(3)`

B

`n_(2) lt n_(1) lt n_(3)`

C

`n_(1) lt n_(3) lt n_(2)`

D

`n_(2) lt n_(3) lt n_(1)`

Text Solution

Verified by Experts

The correct Answer is:
B
For fixed quantity of `MnO_(4)^(-1)` the molar quantity of the reducing agents will be inversely proportional to their n-factor `(n_(f))`
`{:(n_(f),FeSO_(4),Na_(2)C_(2)O_(4),FeC_(2)O_(4)),(,1,2,3):}`
`therefore` order : `n_(2) lt n_(1) lt n_(3)`
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