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 manganese in the reaction is :

Question

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 manganese in the reaction is : (A) 5 (B) 1 (C) 7 (D) 2

Tardigrade Admin · Accepted Answer

In acidic medium, overset+7MnO 4- arrow Mn +2 change in ox. no. =5

Q. The dark purple colour of $K M n O_{4}$ disappears in the titration with oxalic acid in acidic medium.
The overall change in the oxidation number of manganese in the reaction is :

5

1

7

2

In acidic medium,
$M n O_{4}^{-} + 7 \to M n^{+ 2}$
change in ox. no. $= 5$

Q. The dark purple colour of KMnO4​ disappears in the titration with oxalic acid in acidic medium. The overall change in the oxidation number of manganese in the reaction is :

5

1

7

2

In acidic medium, MnO4−​+7​→Mn+2 change in ox. no. =5

Q. The dark purple colour of $K M n O_{4}$ disappears in the titration with oxalic acid in acidic medium.
The overall change in the oxidation number of manganese in the reaction is :

In acidic medium,
$M n O_{4}^{-} + 7 \to M n^{+ 2}$
change in ox. no. $= 5$