Embibe Experts Solutions for Chapter: Solutions, Exercise 2: EXERCISE-I (Conceptual Questions)

The vapour pressure of pure liquid $\mathrm{A}$ is $10 \mathrm{torr}$ and at the same temperature when $1 \mathrm{g}$ of $\mathrm{B}$ solid is dissolved in $20 \mathrm{g}$ of $\mathrm{A}$, its vapour pressure is reduced to $9.0 \mathrm{torr}$. If the molecular mass of $\mathrm{A}$ is $200 \mathrm{amu}$, then the molecular mass of $\mathrm{B}$ is:

The vapour pressure of a pure liquid $\mathrm{A}$ is $70 \mathrm{torr}$ at ${27}^{ 0}\mathrm{C}$. It forms an ideal solution with another liquid $\mathrm{B}$. The mole fraction of $\mathrm{B}$ is $0.2$ and the total vapour pressure of the solution is $84 \mathrm{torr}$ at $27{ }^0\mathrm{C}$. The vapour pressure of pure liquid $\mathrm{B}$ at $27{ }^0\mathrm{C}$ is ______.

The molal elevation constant is the ratio of the elevation in $\mathrm{B}.\mathrm{P}.$ to

Osmotic pressure of a sugar solution at $24 °\mathrm{C}$ is $2.5 \mathrm{atm}$. The concentration of the solution in mole per litre is:

A solution containing $500 \mathrm{g}$ of a protein per litre is isotonic with a solution containing $3.42 \mathrm{g}$ of sucrose per litre. The molar mass of protein in $\mathrm{g} {\mathrm{mol}}^{-1}$ is

The osmotic pressure of equimolar solutions of ${\mathrm{BaCl}}_2,\mathrm{NaCl}$ and glucose will be in the order

The CORRECT relationship between the boiling points of very dilute solutions of ${\mathrm{AlCl}}_{\mathrm{3}} \left({\mathrm{T}}_{\mathrm{1}}\right) \text{and} {\mathrm{CaCl}}_{\mathrm{2}} ({\mathrm{T}}_2\mathrm{)}$, having the same molar concentration is:   

Which of the following $0.1 \mathrm{M}$ aqueous solutions will have the lowest freezing point?