The rate of oxidation of oxalic acid by acidified potassium permanganate is shown in the given graph.

$5 H_{2} C_{2} O_{4} + 2 K M n O_{4} + 3 H_{2} S O_{4} \to 2 M n S O_{4} + K_{2} S O_{4} + 10 C O_{2} + 8 H_{2} O$
The type of catalyst shown by such reaction is

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TestHub · Accepted Answer

In these reactions, one of the products formed ( M n S O 4 ) acts as auto catalyst and thus accelerate the rate of reaction.

Chemistry - Surface Chemistry Question with Solution | TestHub

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