Practicing Success
Solution I containing 1 g urea in 100 g of solution and Solution II contains 2 g of glucose in 100 g of solution. Which is the correct statement out of the following? |
Boiling point of Solution I will be less than Solution II. Freezing point of Solution I will be lower than Solution II. Both will have same freezing point and boiling point. Osmotic pressure of Solution I will be less than Solution II |
Freezing point of Solution I will be lower than Solution II. |
Colligative properties depend upon molal concentration. Moles of urea = \(\frac{1}{60}\) Mass of solvent = 100 - 1 = 99 g Moles of glucose = \(\frac{2}{180}\) Mass of solvent = 100 - 2 = 98 g Molality of Solution I = \(\frac{1/60}{99}\) x 1000 = 0.168 m Molality of Solution II = \(\frac{2/180}{98}\) x 1000 = 0.113 m Freezing point of Solution I will be lower than Solution II. |