Question

KMnO4 can be prepared from K2MnO4 as per the reaction:

3MnO42– 2H2O  2MnO4–  + MnO2 + 4OH–

The reaction can go to completion by removing OH–ions by adding ?

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Answer 1

ANSWER

ANSWERThe reaction for the oxidation of manganate ion to permanganate ion can go to completion by removing hydroxide ions by adding CO2.

ANSWERThe reaction for the oxidation of manganate ion to permanganate ion can go to completion by removing hydroxide ions by adding CO2.CO2+2OH−→CO32−+H2O.

ANSWERThe reaction for the oxidation of manganate ion to permanganate ion can go to completion by removing hydroxide ions by adding CO2.CO2+2OH−→CO32−+H2O.Hence, the correct option is C.