The auto catalyst in the redox reaction involving acidified potassium permanganate and oxalic acid is

The auto catalyst in the redox reaction involving acidified potassium permanganate and oxalic acid is
  1. $\mathrm{Mn}^{2+}$
  2. $\mathrm{SO}_4^{2-}$
  3. $\mathrm{CO}_2$
  4. $\mathrm{H}_2 \mathrm{O}$

Solution

$ 5 \mathrm{C}_2 \mathrm{O}_4{ }^{2-}+2 \mathrm{MnO}_4{ }^{-}+16 \mathrm{H}^{+} \rightarrow $ (Coloured) $ \mathrm{Mn}^{2+}+8 \mathrm{H}_2 \mathrm{O}+10 \mathrm{CO}_2 $ (Colourless) Formation of $\mathrm{Mn}^{2+}$ ions, which is indicated by the decrease in the intensity of the colour of the solution, the rate of the reaction increases which was slow initially

Asked in: AP EAMCET 2023 (19 May Shift 1)

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