Chemistry · 2022
JEE Main · 26 July 2022, Shift 1 · Q69
The dark purple colour of KMnO_4 disappears in the titration with oxalic acid in acidic medium. The overall change in the oxidation number of…
The dark purple colour of $\displaystyle \mathrm{KMnO}_4$ disappears in the titration with oxalic acid in acidic medium. The overall change in the oxidation number of manganese in the reaction is :
Official answer
(1)
$\displaystyle 5$
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JEE Main 2022 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.