Q JEE MAIN 2026

At $T(K), 2$ moles of liquid $A$ and 3 moles of liquid $B$ are mixed. The vapour pressure of ideal...

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Q JEE MAIN 2026

At 298 K , the mole percentage of $\mathrm{N}_2(\mathrm{~g})$ in air is $80 \%$. Water is in equilibrium with air...

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Q JEE MAIN_2026_

Consider the following aqueous solutions. I. 2.2 g Glucose in 125 mL of solution. II. 1.9 g Calcium chloride in...

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Q JEE MAIN 2026

Two liquids $A$ and $B$ form an ideal solution at temperature $T K$. At $T K$, the vapour pressures of...

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Q JEE MAIN 2026

'W' g of a non-volatile electrolyte solid solute of molar mass ${ }^{\prime} \mathrm{M}^{\prime} \mathrm{gmol}^{-1}$ when dissolved in 100 mL...

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Q JEE MAIN 2026

Two liquids A and B form an ideal solution. At 320 K, the vapour pressure of the solution, containing 3...

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Q JEE MAIN 2026

A solution is prepared by dissolving 0.3 g of a non-volatile non-electrolyte solute ' A ' of molar mass $...

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Q JEE MAIN 2026

A substance ${ }^{\prime} \mathrm{X}$ ' ( 1.5 g ) dissolved in 150 g of a solvent ${ }^{\prime} \mathrm{Y}$...

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Q JEE MAIN 2026

The osmotic pressure of a living cell is 12 atm at 300 K . The strength of sodium chloride solution...

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Q JEE MAIN 2026

Which one of the following graphs accurately represents the plot of partial pressure of $\mathrm{CS}_2$ vs its mole fraction in...

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Q JEE MAIN 2026

Given below are two statements: Statement I: The Henry's law constant $\mathrm{K}_{\mathrm{H}}$ is constant with respect to variations in solution's...

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Q JEE MAIN 2026

Consider a solution of $\mathrm{CO}_2(\mathrm{~g})$ dissolved in water in a closed container. Which one of the following plots correctly represents...

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Q JEE MAIN_2026_

Elements $P$ and $Q$ form two types of non-volatile, non-ionizable compounds $P Q$ and $P Q_2$. When 1 g of...

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Q JEE MAIN_2019_

At room temperature, a dilute solution of urea is prepared by dissolving 0.60 g of urea in 360 g of...

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Q JEE MAIN 2020

An open beaker of water in equilibrium with water vapour is in a sealed container. When a few grams of...

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Q JEE MAIN 2020

The size of a raw mango shrinks to a much smaller size when kept in a concentrated salt solution. Which...

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Q JEE-MAIN 2019

Freezing point of a 4% aqueous solution of X is equal to freezing point of 12% aqueous solution of Y....

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Q JEE MAIN 2019

A solution is prepared by dissolving 0.6 g of urea (molar mass $=60 \mathrm{~g} \mathrm{~mol}^{-1}$ ) and 1.8 g of...

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Q JEE MAIN 2019

The osmotic pressure of a dilute solution of an ionic compound XY in water is four times that of a...

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Q JEE MAIN 2019

A solution containing 62 g ethylene glycol in 250 g water is cooled to $-10^{\circ} \mathrm{C}$. If $\mathrm{K}_{\mathrm{f}}$ for water...

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Q JEE MAIN 2019

A solution containing 62 g ethylene glycol in 250 g water is cooled to $-10^{\circ} \mathrm{C}$. If $\mathrm{K}_{\mathrm{f}}$ for water...

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Q JEE MAIN 2019

Liquid ‘M’ and liquid ‘N’ form an ideal solution. The vapour pressures of pure liquids ‘M’ and ‘N’ are 450...

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Q JEE MAIN 2019

Molecules of benzoic acid $\left(\mathrm{C}_6 \mathrm{H}_5 \mathrm{COOH}\right)$ dimerise in benzene. ' w ' g of the acid dissolved in 30...

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Q JEE MAIN 2020

The elevation of boiling point of 0.10 m aqueous $\mathrm{CrCl}_3 . \mathrm{xNH}_3$ solution is two times that of 0.05 m...

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Q JEE MAIN 2020

A set of solutions is prepared using 180 g of water as a solvent and 10 g of different nonvolatile...

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How much amount of NaCl should be added to 600 g of water ( $\rho=1.00 \mathrm{~g} / \mathrm{mL}$ ) to...

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Q JEE MAIN 2019

The freezing point of a diluted milk sample is found to be $-0.2^{\circ} \mathrm{C}$, while it should have been $...

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Q JEE MAIN 2020

A graph of vapour pressure and temperature for three different liquids X, Y, and Z is shown below The following...

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Q JEE MAIN 2019

1 g of a non-volatile non-electrolyte solute is dissolved in 100 g of two different solvents A and B whose...

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Q JEE MAIN 2020

At 300 K, the vapour pressure of a solution containing 1 mole of n-hexane and 3 moles of n-heptane is...

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Q JEE Main 2019

Liquids $A$ and $B$ form an ideal solution in the entire composition range. At 350 K , the vapor pressures...

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Q JEE MAIN 2020

The osmotic pressure of a solution of NaCl is 0.10 atm and that of a glucose solution is 0.20 atm...

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Q JEE MAIN 2020

A cylinder containing an ideal gas $(0.1 \mathrm{~mol}$ of 1.0 $\mathrm{dm}^3$ ) is in thermal equilibrium with a large volume...

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Q JEE MAIN 2019

$\mathrm{K}_2 \mathrm{Hgl}_4$ is $40 \%$ ionised in aqueous solution. The value of its van't Hoff factor (i) is :

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Q JEE-MAIN 2020

If $250 \mathrm{~cm}^3$ of an aqueous solution containing 0.73 g of a protein A is isotonic with one litre of...

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Q JEE-MAIN 2020

A mixture of one mole each of $\mathrm{H}_2, \mathrm{He}$ and $\mathrm{O}_2$ each are enclosed in a cylinder of volume $V$...

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Q JEE MAIN 2019

Molal depression constant for a solvent is $4.0 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$. The depression in the freezing point of the solvent...

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Q JEE MAIN 2021

40 g of glucose (Molar mass $=180$ ) is mixed with 200 mL of water. The freezing point of solution...

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Q JEE MAIN 2019

What would be the molality of $20 \%$ (mass/mass) aqueous solution of KI? (molar mass of $\mathrm{KI}=166 \mathrm{~g} \mathrm{~mol}^{-1}$ )

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Q JEE-MAIN 2021

83 g of ethylene glycol dissolved in 625 g of water. The freezing point of the solution is _______K. (Nearest...

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Q JEE MAIN 2020

At $35^{\circ} \mathrm{C}$, the vapour pressure of $\mathrm{CS}_2$ is 512 mm Hg and that of acetone is 344 mm Hg...

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Q JEE MAIN 2021

Of the following four aqueous solutions, total number of those solutions whose freezing point is lower than that of $...

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1.22 g of an organic acid is separately dissolved in 100 g of benzene $\left(\mathrm{K}_{\mathrm{b}}=2.6 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\right)$ and 100...

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Q JEE MAIN 2019

Elevation in the boiling point for 1 molal solution of glucose is 2 K . The depression in the freezing...

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Q JEE MAIN_2021_

In a solvent 50\% of an acid HA dimerizes and the rest dissociates. The van't Hoff factor of the acid...

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Q JEE MAIN 2021

1 kg of 0.75 molal aqueous solution of sucrose can be cooled up to $-4^{\circ} \mathrm{C}$ before freezing. The amount...

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Q JEE MAIN 2021

Which one of the following 0.10 M aqueous solutions will exhibit the largest freezing point depression ?

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Q JEE MAIN 2021

When 3.00 g of a substance X is dissolved in 100 g of $\mathrm{CCl}_4$, it raises the boiling point by...

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Q JEE MAIN 2021

At $20^{\circ} \mathrm{C}$, the vapour pressure of benzene is 70 torr and that of methyl benzene is 20 torr. The...

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Q JEE MAI 2019

The vapour pressures of pure liquids A and B are 400 and 600 mmHg, respectively at 298 K. On mixing...

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Q JEE MAIN 2021

Which one of the following 0.06 M aqueous solutions has lowest freezing point ?

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Q JEE MAIN 2021

$\mathrm{CO}_2$ gas is bubbled through water during a soft drink manufacturing process at 298 K . If $\mathrm{CO}_2$ exerts a...

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Q JEE MAIN 2021

The vapour pressures of $A$ and $B$ at $25^{\circ} \mathrm{C}$ are 90 mm Hg and 15 mm Hg respectively. If...

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Q JEE MAIN 2021

1.46 g of a biopolymer dissolved in a 100 mL water at 300 K exerted an osmotic pressure of $...

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Q JEE MAIN 2019

For the solution of the gases $w, x, y$ and $z$ in water at $298 K$, the Henrys law constants...

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Q JEE-MAIN 2021

A 1 molal $\mathrm{K}_4 \mathrm{Fe}(\mathrm{CN})_6$ solution has a degree of dissociation of 0.4 . Its boiling point is equal to...

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Q JEE MAIN 2021

A solute a dimerizes in water. The boiling point of a 2 molar solution of A is $100.52^{\circ} \mathrm{C}$. The...

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Q JEE MAIN 2021

If a compound AB dissociates to the extent of $75 \%$ in an aqueous solution, the molality of the solution...

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The oxygen dissolved in water exerts a partial pressure of 20 kPa in the vapour above water. The molar solubility...

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Q JEE Main 2019

Which one of the following statements regarding Henry's law is not correct?

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Q JEE MAIN 2021

At 363 K, the vapour pressure of A is 21 kPa and that of B is 18 kPa. One mole...

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$\mathrm{C}_6 \mathrm{H}_6$ freezes at $5.5^{\circ} \mathrm{C}$. The temperature at which a solution 10 g of $\mathrm{C}_4 \mathrm{H}_{10}$ in 200 g...

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Q JEE MAIN 2021

2 molal solution of a weak acid HA has a freezing point of $3.885^{\circ} \mathrm{C}$. The degree of dissociation of...

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Q JEE MAIN

When 12.2 g of benzoic acid is dissolved in 100 g of water, the freezing point of solution was found...

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Q JEE MAIN 2021

224 mL of $\mathrm{SO}_{2(\mathrm{~g})}$ at 298 K and 1 atm is passed through 100 mL of 0.1 M NaOH solution....

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Q JEE MAIN 2021

$\mathrm{AB}_2$ is $10 \%$ dissociated in water to $\mathrm{A}^{2+}$ and $\mathrm{B}^{-}$. The boiling point of a 10.0 molal aqueous solution...

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Q JEE MAIN 2021

When 9.45 g of $\mathrm{ClCH}_2 \mathrm{COOH}$ is added to 500 mL of water, its freezing point drops by $0.5^{\circ} \mathrm{C}$....

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Q JEE MAIN 2021

1 molal aqueous solution of an electrolyte $A_2 B_3$ is $60 \%$ ionised. The boiling point of the solution at...

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Q JEE MAIN 2022

150 g of acetic acid was contaminated with 10.2 g ascorbic acid $\left(\mathrm{C}_6 \mathrm{H}_8 \mathrm{O}_6\right)$ to lower down its freezing...

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Q JEE MAIN 2022

1.80 g of solute A was dissolved in $62.5 \mathrm{~cm}^3$ of ethanol and freezing point of the solution was found...

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Q JEE MAIN 2022

' x ' g of molecular oxygen $\left(\mathrm{O}_2\right)$ is mixed with 200 g of neon $(\mathrm{Ne})$. The total pressure of...

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Q JEE MAIN 2022

Boiling point of a 2% aqueous solution of a non¬volatile solute A is equal to the boiling point of 8%...

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Q JEE MAIN 2022

If $\mathrm{O}_2$ gas is bubbled through water at 303 K , the number of millimoles of $\mathrm{O}_2$ gas that dissolve...

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Q JEE MAIN 2022

When a certain amount of solid A is dissolved in 100 g of water at 25 °C to make a...

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Q JEE MAIN 2022

Two solutions A and B are prepared by dissolving 1 g of non-volatile solutes X and Y. respectively in 1...

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A gaseous mixture of two substances A and B, under a total pressure of 0.8 atm is in equilibrium with...

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A mixture of hydrogen and oxygen contains 40% hydrogen by mass when the pressure is 2.2 bar. The partial pressure...

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The depression in freezing point observed for a formic acid solution of concentration $0.5 \mathrm{~mL} \mathrm{~L}^{-1}$ is $0.0405^{\circ} \mathrm{C}$. Density...

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Q JEE MAIN 2022

Elevation in boiling point for 1.5 molal solution of glucose in water is 4 K . The depression in freezing...

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Q JEE MAIN 2022

The osmotic pressure exerted by a solution prepared by dissolving 2.0 g of protein of molar mass $60 \mathrm{~kg} \mathrm{~mol}^{-1}$...

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A solution containing $2.5 \times 10^{-3} \mathrm{~kg}$ of a solute dissolved in $75 \times 10^{-3} \mathrm{~kg}$ of water boils at...

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Q JEE-Main 2022

A company dissolves ' X ' amount of $\mathrm{CO}_2$ at 298 K in 1 litre of water to prepare soda...

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Q JEE MAIN 2022

Solute A associates in water. When 0.7 g of solute A is dissolved in 42.0 g of water, it depresses...

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Q JEE MAIN 2022

The vapour pressures of two volatile liquids A and B at 25°C are 50 Torr and 100 Torr, respectively. If...

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Q JEE MAIN 2022

1.2 mL of acetic acid is dissolved in water to make 2.0 L of solution. The depression in reezing point...

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Q JEE-Main 2022

The osmotic pressure of blood is 7.47 bar at 300 K . To inject glucose to a patient intravenously, it...

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Q JEE MAIN 2022

2 g of a non-volatile non-electrolyte solute is dissolved in 200 g of two different solvents A and B whose...

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Q JEE MAIN 2022

A 0.5 percent solution of potassium chloride was found to freeze at –0.24°C. If the percentage dissociation of potassium chloride...

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Q JEE MAIN 2024

Mass of ethylene glycol (antifreeze) to be added to 18.6 kg of water to protect the freezing point at $...

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Q JEE MAIN 2022

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R) Assertion...

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Q JEE MAIN 2024

The solution from the following with highest depression in freezing point/lowest freezing point is

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Q JEE MAIN 2024

The quantity which changes with temperature is :

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Q JEE MAIN 2025

20 mL of sodium iodide solution gave 4.74 g silver iodide when treated with excess of silver nitrate solution. The...

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Q JEE MAIN 2025

Sea water, which can be considered as a 6 molar $(6 \mathrm{M})$ solution of NaCl , has a density of...

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Q JEE MAIN 2025

Given below are two statements. Statement (I): Molal depression constant $K_f$ is given by $\frac{M_1 R T_f}{\Delta S_{\text {fus }}}$,...

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Q JEE MAIN 2025

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Q JEE MAIN 2025

Liquid and form an ideal solution. The vapour pressures of pure liquids and are 350 and 750 mm Hg respectively...

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Q JEE MAIN 2025

Which of the following binary mixture does not show the behaviour of minimum boiling azeotropes?

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Q JEE MAIN 2025

Match List - I with List - II. List - I (A) Solution of chloroform and acetone (B) Solution of...

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Q JEE MAIN 2023

Sea water contains $29.25 \% \mathrm{NaCl}$ and $19 \% \mathrm{MgCl}_2$ by weight of solution. The normal boiling point of the...

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Q JEE MAIN 2023

If the boiling points of two solvents X and Y (having same molecular weights) are in the ratio 2 :...

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Q JEE MAIN 2023

What weight of glucose must be dissolved in 100 g of water to lower the vapour pressure by 0.20 mm...

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Q JEE MAIN 2023

A solution is prepared by adding 2g of “X” of 1 mole of water. Mass percent of “X” in the...

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Q JEE MAIN 2023

An aqueous solution of volume $300 \mathrm{~cm}^3$ contains 0.63 g of protein. The osmotic pressure of the solution at 300...

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Q JEE MAIN 2023

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion...

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Q JEE MAIN 2023

https://competishun.com/consider-the-following-pairs-of-solution-which-will-be-isotonic-at-the-same-temperature-the-number-of-pairs-of-solutions-is-are/

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Q JEE MAIN 2023

80 mole percent of MgCl2 is dissociated in aqueous solution. The vapour pressure of 1.0 molal aqueous solution of $\mathrm{MgCl}_2$...

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Q JEE MAIN 2023

$20 \%$ of acetic acid is dissociated when its 5 g is added to 500 mL of water. The depression...

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Q JEE MAIN 2023

Lead storage battery contains $38 \%$ by weight solution of $\mathrm{H}_2 \mathrm{SO}_4$. The van't Hoff factor is 2.67 at this...

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Q JEE MAIN 2023

Match List I with List II. Choose the correct answer from the options given below :

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Q JEE MAIN 2023

The number of pairs of the solution having the same value of the osmotic pressure from the following is ________....

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Q JEE-Main_2023

Evaluate the following statements for their correctness. (A) The elevation in boiling point temperature of water will be same for...

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Q JEE MAIN 2023

The Total pressure observed by mixing two liquid A and B is 350 mm Hg when their mole fractions are...

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Q JEE MAIN 2023

The vapour pressure of $30 \%(\mathrm{w} / \mathrm{v})$ aqueous solution of glucose is $\_\_\_\_$ mm Hg at $25^{\circ} \mathrm{C}$. [Given:...

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Q JEE MAIN 2023

Solution of 12 g of non-electrolyte (A) prepared by dissolving it in 1000 mL of water exerts the same osmotic...

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Q JEE MAIN 2023

If the degree of dissociation of aqueous solution of weak monobasic acid is determined to be 0.3, then the observed...

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Q JEE MAIN 2023

$0.004 \mathrm{M} \mathrm{K}_2 \mathrm{SO}_4$ solution is isotonic with 0.01 M glucose solution. Percentage dissociation of $\mathrm{K}_2 \mathrm{SO}_4$ is $\_\_\_\_$ (Nearest...

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Q JEE MAIN 2023

A solution of sugar is obtained by mixing 200 g of its 25% solution and 500 g of its 40%...

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Q JEE MAIN 2023

The vapour pressure vs. temperature curve for a solution solvent system is shown below. The boiling point of the solvent...

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Q JEE MAIN 2023

Mass of Urea $\left(\mathrm{NH}_2 \mathrm{CONH}_2\right)$ required to be dissolved in 1000 g of water to reduce the vapour pressure of...

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Q JEE MAIN 2023

In the depression of freezing point experiment A. Vapour pressure of the solution is less than that of pure solvent...

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The total pressure of a mixture of non-reacting gases X (0.6 g) and Y (0.45 g) in a vessel is...

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A solution containing 2 g of a non-volatile solute in 20 g of water boils at 373.52 K. The molecular...

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At $27^{\circ} \mathrm{C}$, a solution containing 2.5 g of solute in 250.0 mL of solution exerts an osmotic pressure of...

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Q JEE MAIN 2023

25 mL of an aqueous solution of KCl was found to require 20 mL of $1 \mathrm{M} \mathrm{AgNO}_3$ solution when...

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Q JEE MAIN 2023

Solid Lead nitrate is dissolved in 1 litre of water. The solution was found to boil at 100.15ºC. When 0.2...

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Q JEE MAIN 2023

The osmotic pressure of solutions of PVC in cyclohexanone at 300 K are plotted on the graph. The molar mass...

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Q JEE MAIN 2023

In the depression of freezing point experiment A. Vapour pressure of the solution is less than that of pure solvent...

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Q JEE MAIN 2024

$0.05 \mathrm{MCuSO}_4$ when treated with $0.01 \mathrm{MKK}_2 \mathrm{Cr}_2 \mathrm{O}_7$ gives green colour solution of $\mathrm{Cu}_2 \mathrm{Cr}_2 \mathrm{O}_7$. The [SPM: Semi...

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Q JEE MAINS 2024

2.5 g of a non-volatile, non-electrolyte is dissolved in 100 g of water at $25^{\circ} \mathrm{C}$. The solution showed boiling...

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Q JEE-Main_2024

A solution containing 10g of an electrolyte $\mathrm{AB}_2$ in 100g of water boils at $100.52^{\circ} \mathrm{C}$. The degree of ionization...

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Q JEE MAINS 2024

The Molarity (M) of an aqueous solution containing 5.85 g of NaCl in 500 mL water is i. (Given :...

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Q JEE MAIN 2024

An artificial cell is made by encapsulating 0.2M glucose solution within a semipermeable membrane. The osmotic pressure developed when the...

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Consider the dissociation of the weak acid HX as given below $ \mathrm{HX}(\mathrm{aq}) \rightleftharpoons \mathrm{H}^{+}(\mathrm{aq})+\mathrm{X}^{-}(\mathrm{aq}), \mathrm{Ka}=1.2 \times 10^{-5} $ $\left[\mathrm{K}_{\mathrm{a}}:\right.$...

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The density of ' $x$ ' M solution (' x ' molar) of NaOH is $1.12 \mathrm{~g} \mathrm{~mL}^{-1}$. while in...

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Q JEE MAIN 2024

The osmotic pressure of a dilute solution is $7 \times 10^5 \mathrm{~Pa}$ at 273 K . Osmotic pressure of the...

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Q JEE MAIN 2024

What happens to freezing point of benzene when small quantity of napthalene is added to benzene?

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Q JEE MAIN 2024

Identify the mixture that shows positive deviations from Raoult's Law

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Q JEE MAIN 2025

When 1 g each of compounds $A B$ and $A B_{2}$ are dissolved in 15 g of water separately, they...

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' x ' g of NaCl is added to water in a beaker with a lid. The temperature of the...

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A solution of two miscible liquids showing negative deviation from Raoult's law will have :

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Given below are two statements : Statement $(\mathrm{I}): \mathrm{NaCl}$ is added to the ice at $0^{\circ} \mathrm{C}$, present in the...

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Q JEE MAIN 2025

The percentage dissociation of a salt $\left( {{\rm{M}}{{\rm{X}}_3}} \right)$ solution at given temperature (van't Hoff factor ${\rm{i}} = 2$) is...

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Q JEE MAIN 2025

XY is the membrane/partition between two chambers 1 and 2 containing sugar solutions of concentration ${{\rm{c}}_1}$ and $...

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Q JEE MAIN 2025

Assume a living cell with $0.9 \%(\omega / \omega)$ of glucose solution (aqueous). This cell is immersed in another solution...

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Q JEE MAIN 2025

2 moles each of ethylene glycol and glucose are dissolved in 500 g of water. The boiling point of the...

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The observed and normal molar masses of compound $M X_{2}$ are 65.6 and 164 respectively. The percent degree of ionisation...

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A solution is made by mixing one mole of volatile liquid A with 3 moles of volatile liquid B. The...

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Q JEE MAIN 2025

Which of the following graph correctly represents the plots of ${K_H}$ at 1 bar for gases in water versus temperature?

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Q JEE MAIN 2025

Consider a binary solution of two volatile liquid components 1 and $2 . x_{1}$ and $y_{1}$ are the mole fractions...

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When a non-volatile solute is added to the solvent, the vapour pressure of the solvent decreases by 10 mm of...

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Q JEE MAIN 2025

If ${{\rm{A}}_2}\;{\rm{B}}$ is 30% ionised in an aqueous solution, then the value of van't Hoff factor (i) is ____$...

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Q JEE MAIN 2025

1.24 g of ${\rm{A}}{{\rm{X}}_2}$ (molar mass $124\;{\rm{g}}\;{\rm{mo}}{{\rm{l}}^{ - 1}}$) is dissolved in 1 kg of water to form a solution...

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Q JEE MAIN 2025

The molarity of a 70% (mass/mass) aqueous solution of a monobasic acid (X) is _____ $ \times {10^{ - 1}}$...

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Q JEE MAIN 2025

What is the freezing point depression constant of a solvent, 50 g of which contain 1 g non volatile solute...

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Q JEE MAIN 2025

Consider the given plots of vapour pressure (VP) vs temperature (T/K). Which amongst the following options is correct graphical representation...

JEE Main Chemistry Medium

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Q JEE MAIN 2025

$\text{CrC}{{\text{l}}_{3}}\cdot \text{xN}{{\text{H}}_{3}}$ can exist as a complex. 0.1 molal aqueous solution of this complex shows a depression in freezing point...

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Q JEE MAIN 2025

Arrange the following solutions in order of their increasing boiling points (i) $10^{-4} \mathrm{MNaCl}$ (ii) $10^{-4} \mathrm{M}$ Urea (iii) $...

JEE Main Chemistry Easy

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