Which of the following oxidation reactions are carried out by both K_2 Cr_2 O_7 and KMnO_4 in acidic medium? A. I^- → I_2 B. S^2- → S C. Fe^2+ →…

Which of the following oxidation reactions are carried out by both $\displaystyle \mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$ and $\displaystyle \mathrm{KMnO}_4$ in acidic medium? A. $\displaystyle \mathrm{I}^{-} \rightarrow \mathrm{I}_2$ B. $\displaystyle \mathrm{S}^{2-} \rightarrow \mathrm{S}$ C. $\displaystyle \mathrm{Fe}^{2+} \rightarrow \mathrm{Fe}^{3+}$ D. $\displaystyle \mathrm{I}^{-} \rightarrow \mathrm{IO}_3{ }^{-}$ E. $\displaystyle \mathrm{S}_2 \mathrm{O}_3{ }^{2-} \rightarrow \mathrm{SO}_4{ }^{2-}$ Choose the correct answer from the options given below: