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MHT CET202016 Oct 2020Morning ShiftChemistrySolutionsActual

If a centimolal aqueous solution of K ₃ [ ~F _ e ( CN )₆ ] has degree of dissociation 0 78 , what is the value of vant Hoff factor?

Options

  1. A3.34
  2. B1.2
  3. C2.5
  4. D4.0

Correct answer

A. 3.34

Step-by-step solution

(A) K ₃ [ Fe ( CN )₆ ] 3 ~K ⁺+ [ Fe ( CN )₆ ]⁻ n =4 van't Hoff factor (i) =1+ (n-1)=1+0.78(4-1)=3.34

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