19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Raoult's law states that for a dilute solution,
If liquid A and B from ideal solutions
A solution containing components A and B follows Raoult’s law
A mixture of benzene and toluene forms
At high altitude the partial pressure of oxygen is less than that at the ground level. This leads to
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
Low concentration of oxygen in the blood and tissues of people living at high altitude is due to .............
Which of the following liquid pairs shows a positive deviation from Raoult's law?
An aqueous solution is 1.0 molal in KI. Which change will cause the vapour pressure of the solution to increase? (AIPMT 2010)
Molarity of a solution containing 1g NaOH in 250 ml of solution is
Which of the following pairs shows a negative deviation from Raoult's law?
The empirical formula of a non-electrolyte is CH₂O. A solution containing 3 g of the compound exerts the same osmotic pressure as that of 0.05 M glucose solution. The molecular formula of the compound is (KCET 2011)
In which mode of expression, the concentration of solution remains independent of temperature?
A solution of sucrose (molar mass = 342g mol -l) has been prepared by dissolving 68.5g of sucrose in 1000g of water. The freezing point of the solution obtained will be (Kf for water = 1.86 K Kg mol-l) (AFMC 2010) (a)…
The weight of pure NaOH required to prepare 250 cm3of 0.1N solutions is
Which of the following concentration terms is/are independent of temperature?
Which of the following liquid pairs shows a positive deviation from Raoult’s law?
The relative lowering of the vapour pressure is equal to the ratio between the numbers of
The percentage (by weight) of sodium hydroxide in a 1.25 molal NaOH solution is
The molarity of a solution obtained by mixing 800 mL of 0.5 M HCl with 200 mL of 1M HCl will be
The normality of a 2.3 M sulphuric acid solution is
4 L of 0.02 M aqueous solution of NaCl was diluted by adding one litre of water. The molarity of resultant solution is …A… Here, A refers to
Calculate the mass of urea (NH₂CONH₂) required in making 0.25 molal aqueous solution using 2.5 L water. (Haryana PMT 2010)
Which of the following is not an example of a solution?
During freezing of a solution the following are in equilibrium