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A solution of 1.25 g of a non-electrolyt...

A solution of 1.25 g of a non-electrolyte in 20 g of water freezing at 271.9K with its molal depression constant , then the molecular wt. of the solute is:

A

207.8 g/mol

B

179.79 g/mol

C

209.6 g/mol

D

105.68 g/mol

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The correct Answer is:
D
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