Question

the role of Mn2+ ion during oxidation-reduction titration of KMnO4 by oxalic acid is​

Answer 1

$Mn^{+2}$ ion shows the colour change during oxidation-reduction titration of KMnO4 by oxalic acid.

• The reaction of potassium permanganate with oxalic acid is given as-
• $MnO_4^-+8H^++5e^-\rightarrow Mn^{+2}+4H_2O$
• In this reaction, Mn is reduced to $Mn^{+2}$. $Mn^{+2}$ is a colourless ion and potassium permanganate has a purple colour.
• Thus when potassium permanganate is reduced to $Mn^{+2}$ ion in an acidic medium we get a colour change from a purple colour to colourless.

Answer 2

Answer:

oxidant

Explanation:

from chemistry hand class 12th