NEET 2022 — Chemistry solution

NEET2022Chemistry

In the neutral or faintly alkaline medium, KMnO $_{4}$ oxidises iodide into iodate. The change in oxidation state of manganese in this reaction is from

A
+6 to +4
B
+7 to +3
C
+6 to +5
D
+7 to +4

Solution

In KMnO $_{4}$ , the oxidation state of Mn is $+ 7$ . In neutral or faintly alkaline medium, MnO $_{4}^{-}$ is reduced to MnO $_{2}$ , in which Mn has oxidation state $+ 4$ .

Net change: $+ 7 \to + 4$ . Iodide (I $^{-}$ , $- 1$ ) is simultaneously oxidised to iodate (IO $_{3}^{-}$ , $+ 5$ ).

← Back to full paper

Practice more Chemistry

Concept-wise practice with instant solutions on Fundamenthol.

Start practicing →