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MHT CET202123 Sep 2021Evening ShiftChemistrySolutionsActual

What is the freezing point of 1 molal aqueous solution of a non-volatile solute? ( K _ f =1.86 ~K ~kg ~mol ⁻¹ ) ( T _ f ^ for water =0^ C )

Options

  1. A-0.93^ C
  2. B-2.43^ C
  3. C-3.72^ C
  4. D-1.86^ C

Correct answer

D. -1.86^ C

Step-by-step solution

aligned & T _ f = T _ f ^ - T _ f = k _ f m & 0^ C - T _ f =1.86 1 & ~T _ f =-1.86^ C aligned

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