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The decolourisation of permanganate with...

The decolourisation of permanganate with oxalate is initially slow, but gains momentum after some time. Why?

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Knowledge Check

  • When KMnO_(4) solution is added to oxalic acid solution , the decolourisation is slow in the beginning but becomes instantaneous after some time because

    A
    `CO_2` is formed as the product
    B
    reaction is exothermic
    C
    `MnO_4^(-)` catalyses the reaction
    D
    `Mn^(2+)` acts as autocatalyst.

  • When KMnO_4 solution is added to oxalic acid solution, the decolourisation is slow in the beginning but becomes instantaneous after some time because

    A
    `CO_(2)` is formed as the product
    B
    Reaction is exothermic .
    C
    `MnO_(4)^(-)`
    D
    `Mn^(2+)` acts as autocatalyst.

  • The rate of enzyme catalysed reaction becomes stable after some time due to

    A
    accumulation of product
    B
    increased pH
    C
    increased temperature
    D
    saturation of enzyme