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Home » Clarify why the shade of KMnO4 vanishes when oxalic corrosive is added to its answer in acidic medium.
Clarify why the shade of KMnO4 vanishes when oxalic corrosive is added to its answer in acidic medium.
CBSE | Chemistry | Class 12 | Exercise 1 | NCERT Exemplar | The d & f Block Elements
Clarify why the shade of KMnO4 vanishes when oxalic corrosive is added to its answer in acidic medium.

Solution:

This is a redox titration. The profound purple shade of KMnO4 vanishes because of the development of MnSO4.

    \[\begin{array}{*{35}{l}} ~ \\ 5H2C2O4\text{ }+\text{ }2KMnO4\text{ }+3H2SO4\text{ }\text{ }>2MnSO4\text{ }+\text{ }8H2O\text{ }+\text{ }K2SO4\text{ }+10CO2~ \\ \end{array}\]

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