The amount of ice that will separate out on cooling a solution containing 50 g of ethylene glycol in 200 g water to $- 9.3^\circ {\rm{C}}$ is : ({{K'}_f} = 1.86\;{\rm{K}}\;{\rm{molalit}}{{\rm{y}}^{ - 1}})

Which of the given solutions has highest osmotic pressure?

The osmotic pressure of 0.2 molar solution of urea at $27^\circ C$ $(R{\rm{ }} = 0.082{\rm{ }}L\;{\rm{ }}atm\;mo{l^{ - 1}}\;{K^{ - 1}})$ is

The freezing point of aqueous solution that contains $5\%$ by mass urea, $1.0\%$ by mass KCl and $10\%$ by mass of glucose is $({K_f}{{\rm{H}}_2}{\rm{O}} = 1.86\;{\rm{K}}\;{\rm{ molalit}}{{\rm{y}}^{ - 1}})$

Depression in freezing point is 6 K for NaCl solution if ${k_f}$ for water is 1.86 K/kg mol, amount of NaCl dissolved in 1 kg water is

Observe the following abbrevations

${\pi _{obs}} =$ observed colligative property

${\pi _{cal}} =$ theoretical colligative property assuming normal behaviour of

solute.

Van’t Hoff factors (i) is given by

The molal boiling point constant of water is $0.53^\circ {\rm{C}}$ When 2 mole of glucose are dissolved in ${4000\;g}$ of water, the solution will boil at :

Which of the following aqueous solutions, each containing 10g of solute in 250 ml of water, will have the highest osmotic pressure? (A) Glucose ($C_6H_{12}O_6$) (B) Urea ($CH_4N_2O$) (C) Sucrose ($C_{12}H_{22}O_{11}$) (D) Fructose ($C_6H_{12}O_6$)

Abnormal colligative properties are observed only when the dissolved non-volatile solute in a given dilute solution

A solution containing ${\rm{ }}4\;g$ of polyvinyl chloride polymer in one litre of dioxane was found to have an osmotic pressure of $4.1 imes {10^{ - 4}}\;atm$ at $27^\circ C$ . The approximate molecular weight of the polymer is

A solution has an osmotic pressure of 0.821 atom at 300 K. its concentration would be :