K ₂ MnO ₄ can be converted into KMnO ₄ by :

Correct Answer is : All of these

Correct Answer is : All of these

Test Index

JEE Main 2026 Model Paper 1

Question : 33 of 75

Marks: +1, -0

K _2 MnO _4

KMnO _4

Solution:

{K_2 MnO_4}↖{+6} {\;───────▶\;}↙{\;\text " (oxidation) "\;}↖{ } {KMno_4}↖{+7}

(1) Passing

O _3

gas (strong oxidising agent)

2 K_2 Mno_4+O_3+H_2 O ⟶ 2 KMno_4+2 KoH+O_2

(2) Passing

Cl _2

gas (Oxidising Agent)

2 K_2 Mno_4+Cl_2 ⟶ 2 KMno_4+2 KCl

(B) Electrolytic oxidation

Mno_4^{2-} ⟶ Mno_4^{-}+e^{Θ}

Hence, All the methods can be used to oxidise

K _2 Mno _4

KMno _4

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