NEET 2020

NEET 2020 Chemistry question on Solutions

The freezing point depression constant (KfK_f) of benzene is 5.12 K kg mol−15.12\,\text{K kg mol}^{-1}. The freezing point depression for the solution of molality 0.078 m0.078\,m containing a non-electrolyte solute in benzene is (rounded off upto two decimal places) :
  1. A.
    0.80 K0.80\,\text{K}
  2. B.
    0.40 K0.40\,\text{K}
  3. C.
    0.60 K0.60\,\text{K}
  4. D.
    0.20 K0.20\,\text{K}
Show answer

Correct option: B

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