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AP EAMCET202022 Sep 2020Evening ShiftChemistryRedox ReactionsActual

Find the equivalent weight of MnO ₄⁻ for acid medium reactions. (Atomic weight of Mn =55 , Atomic weight of O =16 )

Options

  1. A118.93
  2. B23.78
  3. C64.00
  4. D54.93

Correct answer

B. 23.78

Step-by-step solution

In acidic medium Mn ⁷⁺ Mn ²⁺ Therefore, n factor (n)=5 Equivalent weight = Weight MnO ₄⁻ n - factor = 119 5 =23.8 Hence, the correct option is (2).

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