Question

In the neutral or faintly alkaline medium, KMnO₄ oxidises iodide into iodate. The change in oxidation state of manganese in this reaction is from ______.

Options

• +6 to +4

• +7 to +3

• +6 to +5

• +7 to +4

Answer 1

In the neutral or faintly alkaline medium, KMnO₄ oxidises iodide into iodate. The change in oxidation state of manganese in this reaction is from +7 to +4.

Explanation:

In neutral or faintly alkaline medium, potassium permanganate (KMnO₄) acts as an oxidising agent. Manganese in KMnO₄ has an oxidation state of +7. During the reaction, it gets reduced to MnO₂, where the oxidation state of manganese is +4.