Verified Solution • 2025–26 Session
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QJEEM21Ch6416: JEE Main 2021 Chemistry - Class 11 JEEM21Ch6416 Solution: In basic medium, H 2 O 2 exhibits which of the following…
In basic medium, H2O2 exhibits which of the following reactions?
(A) Mn2+ Mn4+
(B) I2 I
(C) PbS PbSO4
Choose the most appropriate answer from the options given below :
(A) Mn2+ Mn4+
(B) I2 I
(C) PbS PbSO4
Choose the most appropriate answer from the options given below :
Multiple Choice Options
- A (B) only
- B (A), (B) only
- C (A) only
- D (A), (C) only
Step-by-Step Verified Solution
In basic medium, oxidising action of H2O2.
Mn2+ + H2O2 Mn+4 + 2OH–
In basic medium, reducing action of H2O2.
I2 + H2O2 + 2OH– 2I– + 2H2O + O2
In acidic medium, oxidising action of H2O2.
PbS(s) + 4H2O2(aq) PbSO4(s) + 4H2O(l)
Mn2+ + H2O2 Mn+4 + 2OH–
In basic medium, reducing action of H2O2.
I2 + H2O2 + 2OH– 2I– + 2H2O + O2
In acidic medium, oxidising action of H2O2.
PbS(s) + 4H2O2(aq) PbSO4(s) + 4H2O(l)