Chemistry Question Bank

100 ml of a liquid A was mixed with 25 ml of a liquid B to give a non-ideal solution of A-B mixture. The volume of this mixture would be

An ideal solution is formed when its constituents

Vapour pressure of a pure liquid X is 2 atm at 300 K. It is lowered to 1 atm on dissolving 1g of Y in 20g of liquid X. If molar mass of X is 200, what is the molar mass of Y?

Which of the following graphs represent the behavior of ideal binary liquid mixture?

Vapour pressure of a solution of non-volatile solute is

The vapour pressure of water at room temperature is 23.8 mm Hg. The vapour pressure of an aqueous solution of sucrose with mole fraction 0.1 is equal to

The vapour pressure of benzene at a certain temperature is 640 mm of Hg. A non-volatile electrolyte solute weighing 2.175 g is added to 30.08 g of benzene. If the vapour pressure of the solution is 600 mm of Hg, what …

Vapour pressure of pure ‘A’ is 70 mm of Hg at 25ºC. It forms and ideal solution with ‘B’ in which mole fraction of A is 0.8. If the vapour pressure of the solution is 84 mm of Hg at 25ºC, the vapour pressure of pure ‘…

The vapour pressure of benzene at a certain temp. is 640 mm Hg . A non-volatile-non-electrolyte solid weighing 2.175g is added to 39.0 g of benzene. The vapour pressure of the solution is 600 mm Hg. What is the molecu…

Assertion: 1.575g H₂C₂O₄.2H₂O in 250 mL solution makes it 0.1 N. Reason : H₂C₂O₄.2H₂O is a dihydrate organic acid.

The vapour pressures of two liquids A and B in their pure states are in the ratio of 1: 2. A binary solution of A and B contains A and B in the mole proportion of 1: 2. The mole fraction of A in the vapour phase of th…

According to Henry’s law ‘the partial pressure of the gas in vapour phase (p) is proportional to the mole fraction of the gas (x) in the solution’. For different gases the correct statement about Henry’s constant is

The milli moles of N₂ gas that will dissolve in 1L of water at 298 K. when it is bubbled through water and has a partial pressure of 0.96 bar will be (Given that at 298 K KH = 76.8 k bar)

To increase the solubility of CO in soft drinks and soda water

KH value for Ar(g), CO₂(g), HCHO (g) CH₄(g)are 40.39, 1.67, 1.83 × 10–5 and 0.413 respectively. Arrange these gases in the order of their increasing solubility.

The weight of pure NaOH required to prepare 250 cm3of 0.1N solutions is

The volume of water to be added to 100 cm3 of 0.5 N H₂SO₄ to get decinormal concentration is

The vapour pressure of pure solvent is 0.8 mm of Hg at a particular temperature. On addition of a non-volatile solute ‘A’ the vapour pressure of solution becomes 0.6 mm of Hg. The mole fraction of component ‘A’ is

Henry’s law constant of oxygen is 1.4 × 10–3 mol L–1. atm–1 at 298 K. How much of oxygen is dissolved in 100 mL at 298 K when the partial pressure of oxygen is 0.5 atm? (Kerala CEE)

What will be the volume of a 12 M solution, if it is equivalent to 240 mL 18M solution

Calculate the mass of urea (NH₂CONH₂) required in making 0.25 molal aqueous solution using 2.5 L water. (Haryana PMT 2010)

To a 4L of 0.2M solution of NaOH, 2L of 0.5 M NaOH are added. The molarity of resulting solution is :

The molarity of a solution of Na₂CO₃ having 10.6 g/500 ml of solution is

The normality of a 2.3 M sulphuric acid solution is

Which of the following pairs of solutions is isotonic?