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1 mole of equimolar mixture of Fe 2 (C 2 O 4 ) 3 and FeC 2 O 4 requires X moles of KMnO 4 in acid medium for complete reaciton. The value of X is:

Options

  1. A0.9
  2. B0.6
  3. C1.2
  4. D0.8

Correct answer

A. 0.9

Step-by-step solution

Fe 2 C 2 O 4 3 ⟶ 2 Fe 3 + + 6 CO 2 + 6 e - n Factor = 6 Fe C 2 O 4 ⟶ Fe 3 + + 2 CO 2 + 3 e - n Factor = 3 Meqs of Fe 2 (C 2 O 4 ) 3   +   Fe(C 2 O 4 )   =   0 .5   ×   6   +   0 .5   ×   3 =   4 .5   Eqs . =   4 .5   Eqs . of KMnO 4 =   4 .5 5   =   0 .9 moles of KMnO 4 .

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