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Question

A solution of urea (mol. mass 56g mol-1) boils at 100.18°C under atmospheric pressure. If Kf and Kb for water are 1.86 and 0.512 K kg mol-1 respectively, the above solution will freeze at


A
- 6.54°C
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B
6.54°C
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C

0.654°C

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D
-0.654°C
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