Number of coulombs required to reduce on e mole of `MnO_(4)^(-)` to `Mn^(2+)`

Question

Number of coulombs required to reduce on e mole of `MnO_(4)^(-)` to `Mn^(2+)`

Number of coulombs required to reduce on e mole of `MnO_(4)^(-)` to `Mn^(2+)`
A. 96500 coulomb
B. `2xx96500` coulomb
C. `5x96500` columb
D. `3xx96500` coulomb.

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - c
`overset(+7)MnO_(4)^(-)+5e^(-)rarrMn^(2)+`
1mol 5 mol 8
`therefore ` 1 mole of `MnO_(4)^(-)` needs 5 mol of electrons i.e., 5F Faraday i.e., `5xx96 500` coulombs.

4 views Answered 2023-02-05 15:29