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.

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Correct answer: B. Aqueous neutral

In neutral or weakly alkaline solution oxidation state of $Mn$ changes by $3$ unit. The reaction between permanganate and thiosulfate is a redox reaction, in which permanganate acts as an oxidizing agent and thiosulfate acts as a reducing agent.
${{MnO}_{4}}^{⊝} + {S}_{2}{{O}_{3}}^{- 2} \to {MnO}_{2} + {{SO}_{4}}^{- 2}$
This ionic mechanism is favoured in neutral aqueous medium.

During the reaction of permanganate with thiosulphate, the change...

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