In basic medium, ${H_2}{O_2}$ exhibits which of the following reactions? A) $M{n^{2 + }} \to M{n^{4 + }}$ $\,\,\,\,\,\,\,\,\,\,$ B) ${I_2} \to {I^ - }$ $\,\,\,\,\,\,\,\,\,\,\,$ C) $PbS \to PbS{O_4}$ Choose the most appropriate answer from the options given below.

JEE CHEMISTRY MCQ: REDOX REACTIONS

1 Hard

1 of 1

Analyzing +4 | -1

In basic medium,

{H_2}{O_2}

exhibits which of the following reactions?
A)

M{n^{2 + }} \to M{n^{4 + }}

\,\,\,\,\,\,\,\,\,\,

{I_2} \to {I^ - }

\,\,\,\,\,\,\,\,\,\,\,

PbS \to PbS{O_4}

Choose the most appropriate answer from the options given below.

View answer and explanation

Correct option: D

A and B

The correct answer is D (A and B) because in a basic medium, hydrogen peroxide (

H_2O_2

) can act as both an oxidizing agent (reducing

I_2

I^-

) and a reducing agent (oxidizing

Mn^{2+}

Mn^{4+}

Practice All Chapter MCQs →

\mathrm{H}

2 \mathrm{KClO}_3 \longrightarrow 2 \mathrm{KCl}+3 \mathrm{O}_2

\mathrm{HNO}_3

\mathrm{HNO}_3

\mathrm{MnO}_4^{-}(\mathrm{aq})+\mathrm{Br}^{-}(\mathrm{aq})+\mathrm{H}_2 \mathrm{O} \longrightarrow 2 \mathrm{MnO}_2(\mathrm{aq})+\mathrm{BrO}_3^{-}(\mathrm{aq})+2 \mathrm{OH}^{-}(\mathrm{aq})

\mathrm{Br}

-1

+5.