Van’thoff factor of $Ca{(N{O_3})_2}$ is

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}})

A solution containing 4 g of polyvinyl chloride in 1 litre of dioxane was found to have an osmotic pressure of $6 imes {10^{ - 4}}$ atm at 300 K. The molecular mass of the polymer is :

The osmatic pressure of ${\rm{0}}{\rm{.4\% }}$ urea solution is 1.66 atm. and that of a solutions of sugar of ${\rm{3}}{\rm{.42\% }}$ is 2.46 atm. When both the solutions are mixed then the osmatic pressure of the resultant solution will be

The phenomenon in which cells are shrinked down if placed in hypertonic solution is called :

The freezing point (in\;^\circ C) of solution containing $0.1\;g\;of\;{K_3}\left[ {Fe{{\left( {CN} \right)}_6}} \right]\left( {{\rm{mol}}{\rm{.wt}}\;329} \right)$ in 100 g of water ${K_f} = 1.86\;{\rm{K}}\;{\rm{ kg }}\;{\rm{mo}}{{\rm{l}}^{ - 1}}$ is

During osmosis, flow of water through a semipermeable membrane is :

Solute $A$ is a ternary electrolyte and solute $B$ is non-electrolyte. If $0.1\;M$ solution of solute $B$ produces an osmotic pressure of $2\;P$, then $0.05\;M$ solution of $A$ at the same temperature will produce an osmotic pressure equal to :

Which of the given solutions has highest osmotic pressure?

Y g of non-volatile organic substance of molecular mass M is dissolved in 250 g benzene. Molal elevation constant of benzene of ${{K_b}}$. Elevation in its boiling point is given by :

Which solution will have least vapour pressure?