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  4. Oxidation of oxalic acid by acidified KMnO4 is an example of autocatalysis. Which of the following graph represents the variation of rate of this reaction with time?

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Q. Oxidation of oxalic acid by acidified $KMnO_{4}$ is an example of autocatalysis. Which of the following graph represents the variation of rate of this reaction with time?

NTA AbhyasNTA Abhyas 2020Surface Chemistry

Solution:

Rate of homogenous autocatalysis, increase with passage of time because the concentration of catalyst increases hence the correct graph is Solution