1.

When \[6gm\] urea dissolve in \[180\,gm\,{{H}_{2}}O\]. The mole fraction of urea is                                               [CPMT 1988]

A.                 \[\frac{10}{10.1}\]               
B.                 \[\frac{10.1}{10}\]
C.                 \[\frac{10.1}{0.1}\]              
D.                 \[\frac{0.1}{10.1}\]
Answer» E.


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