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Manipal MET2019ChemistryRedox Reactions

In acid medium MnO ₄⁻ is reduced to Mn ²⁺ , by a reducing agent. Then the equivalent mass of KMnO ₄ is given by ( M= molecular mass )

Options

  1. AM / 2
  2. BM
  3. CM / 5
  4. DM / 3

Correct answer

C. M / 5

Step-by-step solution

⁺⁷ MnO ₄⁻ Mn ⁺² (Acid medium). Change aligned & in oxidation number =+5 Equivalent weight & aligned of KMnO ₄ & = Molecular weight of KMnO ₄ Change in oxidation number & = M 5 aligned aligned

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