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Reduction of the metal centre in aqueous...

Reduction of the metal centre in aqueous permanganate ion involves

A

`3 e^(-)` in neutral medium

B

`5 e^(-)` in neutral medium

C

`3 e^(-)` in alkaline medium

D

`5 e^(-)` in acidic medium

Text Solution

Verified by Experts

The correct Answer is:
A, D
In acidic medium
`MnO_(4)^(-) rarr Mn^(2+)`
(v.f = 5)
In neutral /basic medium
`MnO_(4)^(-) rarr MnO_(2)`
(v. f. = 3)
In strongly basic medium
`MnO_(4)^(-) rarr MnO_(4)^(2-)`
(v.f. = 1)
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