AP EAMCET · Chemistry · d and f Block Elements
The auto catalyst in the redox reaction involving acidified potassium permanganate and oxalic acid is
- A \(\mathrm{Mn}^{2+}\)
- B \(\mathrm{SO}_4^{2-}\)
- C \(\mathrm{CO}_2\)
- D \(\mathrm{H}_2 \mathrm{O}\)
Answer & Solution
Correct Answer
(A) \(\mathrm{Mn}^{2+}\)
Step-by-step Solution
Detailed explanation
\[ 5 \mathrm{C}_2 \mathrm{O}_4{ }^{2-}+2 \mathrm{MnO}_4{ }^{-}+16 \mathrm{H}^{+} \rightarrow \] (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…
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