1.

A solution of urea (molar mass 56) boils at 100.18^@C at atmospheric pressure. If K_f and K_g for water are 1.86 and 0.512 K "molality"^(-1) respectively, the above solution will freeze at

Answer»

`-6.54^@C`
`6.54^@C`
`-0.654^@C`
`0.654^@C`

ANSWER :C


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