The molality of a $10 \%(\mathrm{v} / \mathrm{v})$ solution of di-bromine solution in $\mathrm{CCl}_{4}$ (carbon tetrachloride) is ''. ____________ . (Nearest integer)

At $27^{\circ} \mathrm{C}$, a solution containing $2.5 \mathrm{~g}$ of solute in of solution exerts an osmotic pressure of . The molar mass of the solute is ___________ (Nearest integer)

The osmotic pressure of blood is 7.47 bar at 300 K. To inject glucose to a patient intravenously, it has to be isotonic with blood. The concentration of glucose solution in gL^$-$1 is _____________.

(Molar mass of glucose = 180 g mol^$-$1, R = 0.083 L bar K^$-$1 mol) (Nearest integer)

A solution containing $10 \mathrm{~g}$ of an electrolyte $\mathrm{AB}_2$ in of water boils at . The degree of ionization of the electrolyte is _________ . (nearest integer)

$2.5 \mathrm{~g}$ of a non-volatile, non-electrolyte is dissolved in $100 \mathrm{~g}$ of water at $25^{\circ} \mathrm{C}$. The solution showed a boiling point elevation by . Assuming the solute concentration is negligible with respect to the solvent concentration, the vapor pressure of the resulting aqueous solution is _________ of (nearest integer)

If the boiling points of two solvents X and Y (having same molecular weights) are in the ratio $2: 1$ and their enthalpy of vaporizations are in the ratio $1: 2$, then the boiling point elevation constant of is times the boiling point elevation constant of Y. The value of m is ____________ (nearest integer)

A solution containing $2 \mathrm{~g}$ of a non-volatile solute in $20 \mathrm{~g}$ of water boils at $373.52 \mathrm{~K}$. The molecular mass of the solute is ___________ . (Nearest integer)

Let $A=\left[\begin{array}{cc}2 & -1 \\ 1 & 1\end{array}\right]$. If the sum of the diagonal elements of is , then is equal to ________.

$1.80 \mathrm{~g}$ of solute A was dissolved in $62.5 \mathrm{~cm}^{3}$ of ethanol and freezing point of the solution was found to be . The molar mass of solute A is ________ g .