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MHT CET202311 May 2023Morning ShiftChemistryRedox ReactionsActual

Oxidation state of manganese in potassium permanganate is:

Options

  1. A+3
  2. B+7
  3. C+5
  4. D+1

Correct answer

B. +7

Step-by-step solution

Oxidation number of K =+1 Oxidation number of O =-2 KMnO ₄ is a neutral molecule. Sum of the oxidation number of all atoms =0 Oxidation number of K + Oxidation number of Mn +4 ( Oxidation number of O )=0(+1)+( Oxidation number of Mn )+4 (-2)=01+( Oxidation number of Mn )=+8 Oxidation number of Mn =+7

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