Dissolving 120 g of urea (mol. wt. 60) in 1000 g of water gave a solution of density 1.15 g/mL. The molarity of the solution is
1.78 M
2.00 M
2.05 M
2.22 M
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A solution of two liquids boils at a temperature more than the boiling point of either of them. Hence, the binary solution shows ______.