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NEET 2014
Exam
NEET
Year
2014
Subject
Chemistry
Chapter
d and f Block Elements

NEET 2014 · Chemistry · d and f Block Elements

The reaction of aqueous KMn O _ 4 with H _ 2 O _ 2 in acidic...

The reaction of aqueous KMnO4KMn{O}_{4} with H2O2{H}_{2}{O}_{2} in acidic conditions gives:

Options

  1. AMn4+M{n}^{4 +} and O2{O}_{2}
  2. BMn2+M{n}^{2 +} and O2{O}_{2}
  3. CMn2+M{n}^{2 +} and O3{O}_{3}
  4. DMn4+M{n}^{4 +} and MnO2Mn{O}_{2}

Correct answer

B. Mn2+M{n}^{2 +} and O2{O}_{2}

Step-by-step solution

3H2SO4+2KMnO4+5H2O2→5O2+2MnSO4+8H2O+K2SO43{H}_{2}S{O}_{4} + 2KMn{O}_{4} + 5{H}_{2}{O}_{2} \to 5{O}_{2} + 2MnS{O}_{4} + 8{H}_{2}O + {K}_{2}S{O}_{4}
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