Decolourisation of acidified potassium permanganate occurs when ${{\rm{H}}_2}{{\rm{O}}_2}$ is added to it. This is due to:

Reduction of ${\rm{KMn}}{{\rm{O}}_4}$

Oxidation of ${\rm{KMn}}{{\rm{O}}_4}$

Both oxidation and reduction of ${\rm{KMn}}{{\rm{O}}_4}$

JEE CHEMISTRY MCQ: HYDROGEN

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Decolourisation of acidified potassium permanganate occurs when

{\mathrm{H}_2}{\mathrm{O}_2}

is added to it. This is due to:

View answer and explanation

Correct option: B

Reduction of

\mathrm{KMn}{\mathrm{O}_4}

Option B is correct.

{H_2}{O_2}

reduces

KMnO_4

because it acts as a reducing agent, causing the decolourisation.

Mn^{7+}

is reduced to

Mn^{2+}