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InterviewSolution
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An exammple of autocatalysis isA. Oxidation of NO to `NO_(2)`B. Oxidation of `SO_(2)` to `SO_(3)`C. Decomposition of `KClO_(3)` to `KCl` and `O_(2)`D. Oxidation of oxalic acid by acidified `KMnO_(4)` |
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Answer» Correct Answer - D `2KMnO_(4)+5H_(2)C_(2)O_(4)+3H_(2)SO_(4)toK_(2)SO_(4)+2KMnSO_(4)+8H_(2)O+10CO_(2)` the pink colour of `KMnO_(4)` disappears slowly on treating it with oxalic acid, but the rate of disappearance of colour fastens after sometime due to the formation fo `Mn^(2+)` ions which acts as autocatalyst for the reaction. |
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