List of top Chemistry Questions on Solutions asked in KEAM

A binary solution containing two volatile solutes A and B shows positive deviation from Raoult’s law. Which of the following statement is true?
Volume ofmethanol to make 2L of 0.4M solution
\( (\text{density} = 0.64\text{KgL}^{-1}, \text{ MM} = 32\text{ g mol}^{-1}) \)
Mass of ethanoic acid required to prepare 0.5m solution containing 100g of water?
Which of the following gases has the lowest solubility in water at 298 K?
Hardness of water is estimated by titration with
Fehling's solution is a mixture of:
260 g of an aqueous solution contains 60 g of urea (Molar mass = 60 g mol\(^{-1}\)). The molality of the solution is:
Which of the following liquid pairs shows negative deviation from Raoult’s law?
The molarity of a solution containing 8 g of NaOH (Molar mass = 40 g mol\(^{-1}\)) in 250 mL solution is:
The vapour pressures of pure liquids X and Y at 350K are 200 mm and 300 mm of Hg respectively. Then the correct vapour pressure (in mm of Hg) of an ideal solution containing X and Y in the mole ratio 3: 2 at the same temperature is
The chemistry teacher asked the students to prepare 20% w/w solution of urea [NH2CONH2] in water. Which one of the following solution does not conform to the required composition?
The Henry�s law constant for $O_2$ dissolved in water is $4.34 \times 10^4$ atm at certain temperature. If the partial pressure of $O_2$ in a gas mixture that is in equilibrium with water is 0.434 atm, what is the mole fraction of $O_2$ in the solution?
The system that forms maximum boiling azeotrope is
Which of the following concentration terms are independent of temperature ?
Mixing of $N_2$ and $H_2$ form an ideal gas mixture at room temperature in a container. For this process, which of the following statement is true?
$200\, mL$ of water is added to a $500\, mL$ of $0.2 \,M$ solution. What is the molarity of this diluted solution?
When a gas is bubbled through water at $298\, K$, a very dilute solution of the gas is obtained. Henry?s law constant for the gas at $298 \,K$ is $100\, kbar$. If the gas exerts a partial pressure of $1\, bar$, the number of millimoles of the gas dissolved in one litre of water is
$1.5\, g$ of a non-volatile, non-electrolyte is dissolved in $50 \,g$ benzene $(K_b\, =\, 2.5\, K kg \,mol^{-1}$ ). The elevation of the boiling point of the solution is $0.75\, K$. The molecular weight of the solute in $g$ $mol^{-1}$ is
At $ 25{}^\circ C, $ at 5% aqueous solution of glucose (molecular weight $ =180\,g\,mo{{l}^{-1}} $ ) is isotonic with a 2% aqueous solution containing and unknown solute. What is the molecular weight of the unknown solute?
An aqueous solution containing $3\, g$ of a solute of molar mass $111.6 \,g\, mol ^{-1}$ in a certain mass of water freezes at $-0.125^{\circ} C$. The mass of water in grams present in the solution is $\left(K_{f}=1.86\, Kkg \,mol ^{-1}\right)$
The vapour pressure of a solvent at 293 K is 100 mm Hg. Then the vapour pressure of a solution containing 1 mole of a strong electrolyte $(AB_2)$ in 99 moles of the solvent at 293 K is (assume complete dissociation of solute)
Dry air is passed through a solution containing $ 10\,g $ of a solute in $ 90\,g $ of water and then through pure water. The loss in weight of solution is $ 2.5\,g $ and that of pure solvent is $ 0.05 \,g $ . Calculate the molecular weight of the solute.
Acetic acid dimerizes when dissolved in benzene. As a result boiling point of the solution rises by $0.36^{\circ}C$, when $100\, g$ of benzene is mixed with "X" g of acetic acid. In this solution, if experimentally measured molecular weight of acetic acid is 117.8 and molar elevation constant of benzene is $2.57\, K\, kg\, mol^{-1}$, what is the weight % and degree of dissociation (in %) of acetic acid in benzene?