Solutions practice · Mixed difficulty

The distribution law was given by :

Two solutions of $\mathrm{KN}{\mathrm{O}_3}$ and $\mathrm{C}{\mathrm{H}_3}\mathrm{COOH}$ are prepared separately. Molarity of both is $0.1\;M$ and osmatic pressures are ${p_1}\;and\;{p_2}$ respectively. The correct relationship between the osmatic pressures is

${P_A}$ and ${P_B}$ are the vapour pressures of pure liquid components $A$ and $B$ respectively of an ideal binary solution. If ${X_A}$ represents the mole fraction of component $A$ , the total pressure of the solution will be

Which pair will not be isotonic

Which of the following acid has the same molecular weight and equivalent weight.

Which of the following solution highest boiling point?

You are given 100 mL of $\mathrm{CC}{\mathrm{l}_4}$ to extract iodine from 200 mL of its aqueous solution. For extracting maximum amount of iodine, which one of the following processes would you use?

Which solution will have least vapour pressure?

On shaking 10 mL of 0.1 molar solution of an organic compound in water with 10 mL of $\mathrm{CC}{\mathrm{l}_4}$ til equilibrium is attained, concentration of the organic compound in water would be $(K = 9)$ in molar units :

Iodine was added to a system of water and $\mathrm{C}{\mathrm{S}_2}$. The concentrations of iodine in water and $\mathrm{C}{\mathrm{S}_2}$ were found to be ${c_1}\;and\;{c_2}$ respectively. The ratio ${c_1}/{c_2}$ will not change only if :

Vapour pressure of pure A = 100 torr, moles = 2; vapour pressure of pure B=80 torr, moles = 3. Total vapour pressure of the mixture is

$20 \,\mathrm{mL}$ of calcium hydroxide was consumed when it was reacted with $10 \,\mathrm{mL}$ of unknown solution of $\mathrm{H}_{2} \mathrm{SO}_{4}$. Also $20 \,\mathrm{mL}$ standard solution of $0.5 \,\mathrm{M} \,\mathrm{HCl}$ containing 2 drops of phenolphthalein was titrated with calcium hydroxide, the mixture showed pink colour when burette displayed the value of $35.5 \,\mathrm{mL}$ whereas the burette showed $25.5 \,\mathrm{mL}$ initially. The concentration of $\mathrm{H}_{2} \mathrm{SO}_{4}$ is _____ M. (Nearest integer)

At $25^\circ C$ , the highest osmotic pressure is exhibited by $0.1\;M$ solution of

When an ideal binary solution is in equilibrium with its vapour, molar ratio of the two components in the solution and in the vapour phase is :

At $35^\circ \mathrm{C}$, the vapour pressure of $C{S_2}$ is 512 mm Hg and that of acetone is 344 mm Hg. A solution of $C{S_2}$ in acetone has a total vapour pressure of 600 mm Hg. The false statement amongst the following is

When 36 grams of solute having the empirical formula $C{H_2}O$ is dissolved in 1.2 kg of water, the solution freezes at $- {0.93^0}C$ what is the molecular formula of solute? $\left( {{K_f} = {{1.86}^0}C.kg.mo{l^{ - 1}}} \right)$

Consider the following statements.

(i) On adding methyl alcohol to water, boiling point of water increases

(ii) When ${NaCl}$ is added to water, depression in freezing point is observed

(iii) Diffusion of solution occurs from a region of its high concentration to a region of its low concentration

Choose the correct options

How many grams of concentrated $HN{O_3}$ solution should be used to prepare $250ml\,\,of\,\,2.0M\,\,HN{O_3}$. The concentrated acid is $70\% HN{O_3}$

When the solute is present in trace quantities, the following expression is used:

Equimolal solutions of A and B show depression in freezing point in the ratio $2 : 1.$ A remains in its normal state in solution. $B$ will be ……. in solution:

Which of the aqueous equimolal solution will have its vapour pressure near to solvent?

The size of a raw mango shrinks to a much smaller size when kept in a concentrated salt solution. Which one of the following processes can explain this?

The vapour pressure of benzene at $90^\circ C$ is 1020 torr. A solution of 5 g of a solute in 58.5 g benzene has vapour pressure 990 torr. The molecular weight of the solute is :

The plots of $\frac{1}{{{X_A}}}\;vs.\;\frac{1}{{{Y_A}}}$ (where ${X_A}\;\mathrm{and}\;{Y_A}$ are the mole fraction of liquid A in liquid and vapour phase respectively) is linear with slope and intercepts respectively:

The solution that forms maximum boiling azeotrope is

Evaluate the following statements for their correctness.
A. The elevation in boiling point temperature of water will be same for $0.1 \,\mathrm{M}\, \mathrm{NaCl}$ and $0.1 \,\mathrm{M}$ urea
B. Azeotropic mixture boil without change in their composition.
C. Osmosis always takes place from hypertonic to hypotonic solution.
D. The density of $32\%$ $H_2S{O_4}$ solution having molarity 4.09 M is approximately $1.26 \,g \,mL^{–1}.$
E. A negatively charged sol is obtained when $\mathrm{KI}$ solution is added to silver nitrate solution.
Choose the correct answer from the options given below.

$20\;g$ of binary electrolyte (mol. wt. =100) are dissolved in $500\;g$ of water. The depression in freezing point of the solution is $0.74^\circ C\;({k_f} = 1.86\;K{m^{ - 1}})$ the degree of ionisation of the electrolyte is

Liquid $M$ and liquid $N$ form an ideal solution. The vapour pressures of pure liquids $M$ and $N$ are 450 and 700 mmHg, respectively, at the same temperature. Then correct statement is
${x_M} =$ mole fraction of $M$ in solution; $\,\,\,\,\,\,\,\,\,\,\,{x_N} =$ mole fraction of $N$ in solution;
${y_M} =$ mole fraction of $M$ in vapour phase; $\,\,\,\,\,\,\,\,\,\,\,\,\,\,{y_N} =$ mole fraction of $N$ in vapour phase;

Among the following mixtures, dipole-dipole as the major interaction is present in :

Formation of a solution from two components can be considered as

(1) pure solvent $\to$ separated solvent molecules$\Delta {H_1}$

(2) pure solute$\to$ separated solvent molecules,$\Delta {H_2}$

(3) separated solvent and solute molecules $\to$ solution,$\Delta {H_3}$

Solution so formed will be ideal if