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[" 6.An aqueous solution of urea freezes...

[" 6.An aqueous solution of urea freezes at "-0.186^(@)C" ."K_(f)" for water "=1.86Kkg" mo "N_(" f ")^(3),K_(b)" for water "=5.12Kkgmol^(-1)" .The "],[" boiling point of urea solution will be: "],[[" (a) "373.065K," (b) "373.186K," (c) "373.512K," (d) "373.0512K]]

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