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Question 600041
JEE Chemistry · Medium

Mole Concept and Stoichiometry: Equivalent Concept MCQ

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Equivalent ConceptMediumQuestion 600041

Question

Equivalent mass of KMnO₄ (M = 158) in acidic medium (Mn: +7 → +2) is:
  1. A
    158 g
  2. B
    31.6 g
    Correct
  3. C
    52.7 g
  4. D
    79 g

Correct answer

31.6 g

Explanation

Change in oxidation state = 7−2 = 5. n-factor = 5. Equiv. mass = 158/5 = 31.6 g/equiv.

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