Solutions practice · Mixed difficulty

Assertion: The molarity and normality of a solution of sodium carbonate are same.
Reason: Molarity is the product of normality & valency factor.

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

Statement I: Acetic acid has a molecular weight of $120 \mathrm{~g} \mathrm{~mol}^{-1}$ in benzene.

Statement II: van't Hoff factor for acetic acid in benzene is 0.5 when $100 \%$ dimer is formed.

A mixture of ethane and ethene occupies 41 L at 1 atm and $500\;K$. the mixture reacts completely with $\;\frac{{10}}{3}$ mole of ${O_2}$ to produce $C{O_2}\,and\;{H_2}\mathrm{O}$. The mole fraction of ethane and ethene in the mixture are $\left( {R = 0.082\;L\;\mathrm{atm}\;{\mathrm{K}^{ - 1}}\;\mathrm{mo}{\mathrm{l}^{ - 1}}} \right)$ respectively

When a solute is added in two immiscible solvents, it distributes itself between two liquids so that its concentration in first liquid is ${c_1}$ and that in the second liquid is ${c_2}$. If the solute forms a stable trimer in the first liquid, the distribution law suggests that :

We have three aqueous solutions of $\mathrm{NaCl}$ labelled as (A), (B) and (C) with concentration of $0.1 \mathrm{~M}, 0.01 \mathrm{~M}$ and $0.001 \mathrm{~M}$, respectively. The value of van't Hoff factor (i) of these solutions will be in order

Which of the following concentration term is/are independent of temperature?

The ratio of concentration of ${NH}_3$ in ${H}_2 {O}$ to the concentration of ${NH}_3$ in ${CHCl}_3$ at $290 \mathrm{~K}$ is 24 at any pressure. Through one litre of pure water ammonia gas was passed, the concentration of ${NH}_3$ was measured to be $0.38 ({M})$. To this solution 0.025 moles of ${CuSO}_4$ was added. In ${NH}_3$ solution all ${Cu}^{2+}$ ions form the complex ${Cu}\left({NH}_3\right)_x^{2+}$. Now over this solution one litre of ${CHCl}_3$ was added, thoroughly shaken and equilibrated. In ${CHCl}_3$ layer, ${Cu}\left({NH}_3\right)_x^{2+}$ was absent but in ${CHCl}_3$ the concentration of ${NH}_3$ was reduced to $0.0112({M})$ at $290 \mathrm{~K}$. Determine the value of ${x}$ in nearest possible integers.

Statement I: People living at high altitudes have symptoms of a condition known as anoxia.

Statement II: At high altitudes, the partial pressure of oxygen is less than that at the ground level.

Most of the processes in our body occur in

Isotonic solutions are solutions having the same

An aqueous solution is 1.0 molal in KI. Which change will cause the vapour pressure of solution to increase :

The relative lowering of vapour pressure produced by dissolving 71.5 g of a substance in 1000 g of water is 0.00713. The molecular weight of the substance will be :

On mixing $10\,ml$ of acetone with $40\,ml$ of chloroform, the total volume of the solution is

The distribution law holds good for :

The exact volumes of $1M\,NaOH$ solution required to neutralise 50 mL of $1M\,{H_3}P{O_3}$ solution and 100 ml of $2M\,{H_3}P{O_2}$ solution, respectively, are

The statement “the relative lowering of the vapour pressure is equal to th ratio ot moles of the solute to the total number of the moles in the solution” refers to

Two liquids X and Y form an ideal solution. The mixture has a vapour pressure of 400 mm at 300 K when mixed in the molar ratio of 1:1 and a vapour pressure of 350 mm when mixed in the molar ratio of 1:2 at the same temperature. The vapour pressures of the two pure liquids X and Y respectively are

Which of the following associated with isotonic solutions is not correct?

For an ideal binary liquid solution with $P_A^ \circ > P_B^ \circ$ which relation between ${X_A}$ (mole fraction of A in liquid phase) and ${Y_A}$ (mole fraction of A in vapour phase) is correct, ${X_B}$ and ${Y_B}$ are mole fraction of B in liquid and vapour phase respectively :

Which of the following compounds can be used as antifreeze in automobile radiators?

Aqueous solutions of two acids having same concentrations of common ion $\left[ {{\mathrm{H}^ + }} \right]$ are called:

Assertion: There will not be any change in concentration of an ethanol and water mixture containing $85 \%$ ethanol by volume on boiling.

Reason: It is because azeotropes boil out in constant composition.

Which of the following compounds correspond to maximum van’thoff factor for dilute solution?

The Henry’s law constant for the solubility of ${{N_2}}$ gas in water at $298\;K$ is $1.0 \times 105\;atm$ . The mole fraction of ${{N_2}}$ In air is 0.8 The number of moles of ${{N_2}}$ from air dissolved in 10 moles of water of $298\;K$ and 5 atm pressure is

A solution is prepared by dissolving 24.5 g of sodium hydroxide in distilled water to give 1L solution. The molarity of $NaOH$ in the solution is
(Given, that molar mass of $NaOH = 40.0\;g\;mo{l^{ - 1}}$)

How many grams of dibasic acid ${\mathrm{mole}\mathrm{.wt}\mathrm{.200}}$ should be present in $100\;mL$ of the aqueous solution to give ${0.1\;N}$?

The osmotic pressure of a solution can be accurately measured in the shortest possible time by :

When a solute distributes itself between two immiscible liquids in contact with each other, a mathematical constant ratio exists between :

The solubility of iodine in water is ${0.8\;g/L}$. If the partition coefficient of iodine between ${\mathrm{CC}{\mathrm{l}_4}}$ and water (in favour of ${\mathrm{CC}{\mathrm{l}_4}}$) is 82, the solubility of iodine in ${\mathrm{CC}{\mathrm{l}_4}}$ is :