If the elevation in boiling point of a solution of 10 g of solute (mol. wt. = 100 g of water is $\Delta {T_b}$, the ebullioscopic constant of water is

By dissolving 5g substance in 50 g of water, the decrease in freezing point is $1.2^\circ C$. The gram molal depression is $1.85^\circ C$. The molecular weight of substance is

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

Boiling point of water is defined as the temperature at which :

The average osmotic pressure of human blood is 7.8 bar at $37^\circ C$. What is the concentration of an aqueous NaCl solution that could be used in the blood steam?

If the various terms in the below given expressions have usual meanings, the van’t Hoff factor (i) cannot be calculated by which one of the expressions?

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

Ethylene glycol is used as an antifreeze in a cold climate. Mass of ethylene glycol which should be added to 4 kg of water to prevent it from freezing at $- 6^\circ {\rm{C}}$ will be $({K_f}\;{\rm{for}}\;{\rm{ water}} = 1.86\;{\rm{K}}\;{\rm{ kg }}\;{\rm{mo}}{{\rm{l}}^{ - 1}}{\rm{)}}{\rm{.}}$ and molar mass of ethylene glycol $= 62\;g{\rm{ }}\;mo{l^{ - 1}}$

The modal elevation constant of water is $0.52^\circ {\rm{C}}$ . The boiling point of 1.0 modal aqueous KCl solution (assuming complete dissociation of KCl), therefore, should be

A cane sugar solution has an osmotic pressure of 2.46 atm at 300K. What is the strength of the solution.

A solution containing 10 g per ${{\rm{d}}{{\rm{m}}^3}}$ of urea (mol. mass = 60) is isotonic with a 5% (wt.by vol.) solution of a non-volatile solute. The molecular mass (in ${\rm{g}}\;{\rm{mo}}{{\rm{l}}^{ - 1}}$) of non-volatile solute is :