Question

PROBLEM 19 Hydrogen peroxide solution (20 m2) reacts quantitatively with
solution of KMnO, CO mL) acidified with dilute H1,50, The same volume of the
30, solution is just decolourized by 10 mL of Muso, in neutral medium
simultaneously forming a dark brown precipitute of hydrated MnO,. The brown
precipitate is dissolved in 10 mL of 0.2 M sodium oxalate under boiling condition in
the presence of dilute H250, Write the balanced equations involved in the reactions
and calculate the molarity of H202.
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Answer 1

Answer:

Hydrogen peroxide solution (20mL) reacts quantitatively with a solution of KMnO4. (20mL) acidified with dilute H2SO4. ... The same volume of the KMnO4 solution is just decolourised by 10mL of MnSO4 in neutral medium simultaneously forming a dark brown precipitate of hydrated MnO2.

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