19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Four solutions of K₂SO₄ with the following concentration 0.1 m, 0.01 m, 0.001 m and 0.0001 m SOLUTIONS are available. The maximum value of van’t Hoff factor, i, corresponds to
The freezing point of equimolal aqueous solutions will be highest for
An aqueous solution of methanol in water has vapour pressure (MP PMT 2007)
Among 0.1 M solutions of urea, Na₃PO₄ and Al₂ (SO₄)₃, which is incorrect
Van’t Hoff factor more than unity indicates that the solute in solution is (Manipal 2008)
If sodium sulphate is considered to be completely dissociated into cations and anions in aqueous solution, the change in freezing point of water fT , when 0.01 mole of sodium sulphate is dissolved in 1 kg of water, is…
Which of the following pair of solutions are expected to be isotonic at the same temperature?
Van’t Hoff factor more than unity indicates that the solute in solution has
The freezing point (in ºC) of solution containing 0.04g of AlCl₃ (mol. wt. 133) in 100g of water (Kf = 1.86 K kg mol–1) is
The Van’t Hoff factors i for an electrolyte which undergoes dissociation and association in solvents are respectively
Which of the following pairs of solutions is isotonic?
Two solutions A and B are separated by a semi- permeable membrane. As a result of osmosis, the level of solution A is found to rise. It implies that
What would happen if a thin slice of sugar beet is placed in a concentrated solution of NaCl?
Which statement is incorrect about osmotic pressure (), volume (V) and temperature (T)?
A solution of urea (mol. mass 56 g mol–1) boils at 100.18ºC at the atmospheric pressure. If Kf and Kb for water are 1.86 and 0.512 K kg mol–1 respectively, the above solution will freeze at
Which of the following colligative properties can provide molar mass of proteins (or polymers of colloids) with greater precision?
The empirical formula of a non-electrolyte is CH₂O. A solution containing 6g/L of the compound exerts the same osmotic pressure as that of 0.05 M glucose solution. The molecular formula of the compound is SOLUTIONS
pA and pB are the vapour pressure of pure liquid components A and B respectively of an ideal binary solution. If xA represents the mole fraction of component A, the total pressure of the solution will be (AIPMT 2012)
A solution has higher osmotic pressure than its standard solution. Which of the following term will be used for this solution? (OJEE 2012)
The colligative property is not represented by (AllMS 2013)
Which one of the following statements given below concerning properties of solution, describes a colligative effect? (AllMS 2013)
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…
The freezing point of 1 molal Glucose solution in water is ( 1.86 H O f K K kg mol )
Kf for water is 1.86 K kg mol–1. If your automobile radiator holds 1.0 kg of water, how many grams of ethylene glycol (C₂H₆O₂) must you add to get the freezing point of the solution lowered to –2.8ºC?
Which of the following aqueous solutions has the highest boiling point?