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Complete the following reactions. (i)...

Complete the following reactions.
(i) `MnO_4^(-)+2H_2O+3e^(-)to"_________"+4OH^(-)`
(ii) `MnO_4^(-)+8H^(+)+5e^(-)to "__________" +4H_2O`
(iii) `MnO_4^(-)+e^(-)to "_________"`

A

a basic medium

B

an acid medium

C

a neutral medium

D

both acidic and basic media

Text Solution

Verified by Experts

The correct Answer is:
A
In basic medium
`2KMnO_4 + 2KOH to 2K_2MnO_4 + H_2O + [O]` or `MnO_4^(-) + e^(-) to MnO_4^(2-)`
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