AQA Jun 2015 Paper 5 Q9

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do not write outside the box the redox reaction in aqueous solution between acidified potassium manganate vii and sodium ethanedioate is autocatalysed a write an equation for this redox reaction identify the species that acts as the catalyst explain how the properties of the species enable it to act as a catalyst in this reaction marks wmp jun chem do not write outside the box b sketch a graph to show how the concentration of mno reaction explain the shape of the graph ions varies with time in this marks end of questions wmp jun chem

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