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Solution


Q.

During the reaction of permanganate with thiosulphate, the change in oxidation of manganese occurs by value of 3. Identify which of the below medium will favour the reaction.       [2023]
1 Both aqueous acidic and neutral  
2 Both aqueous acidic and faintly alkaline  
3 Aqueous acidic  
4 Aqueous neutral  

Ans.

(4)

In neutral or faintly alkaline solution

MnO4-+7⟶MnO2+4+2H2O