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Change in oxidation state of Mn when KMnO4 oxidises thiosulphate in neutral or faintly alkaline medium

The same question, asked 2 times: 29 Jul 2022, 6 Apr 2023. Every wording below, oldest first.

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  1. Question 1

    29 Jul 2022

    40
    In neutral or faintly alkaline medium, KMnO4KMnO_{4} being a powerful oxidant can oxidize, thiosulphate almost quantitatively, to sulphate. In this reaction overall change in oxidation state of manganese will be:

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  2. Question 2

    6 Apr 2023

    130
    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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