19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
The osmotic pressure is expressed in the unit of (VMMC 2010)
6.02 × 1020 molecules of urea are present in 100 mL of its solution. The concentration of solution is (NEET 2013)
The concentration (in mol/L) of the solution having osmotic pressure 0.0821 atm at 300 K will be (AFMC 2009)
Assertion: One molal aqueous solution of glucose contains 180g of glucose in 1kg water. Reason: Solution containing one mole of solute in 1000 g of solvent is called one molal solution. (AIIMS 2008)
The molarity of a solution containing 5.0g of NaOH in 250 mL solution is (AFMC 2009)
Molarity of a given orthophosphoric acid solution is 3 M. Its normality is (KCET 2007)
The molecular weight of benzoic acid in benzene as determined by depression in freezing point method corresponds to:
Van’t Hoff factor more than unity indicates that the solute in solution is (Manipal 2008)
Out of the compounds below, the vapour pressure of
Which of the following aqueous solutions has the highest boiling point?
A solution containing 10g per dm3 of urea (molecular mass = 60g mol–1) is isotonic with a 5% solution of a non-volatile solute. The molecular mass of this non-volatile solute is
Benzoic acid is dissolved in benzene, van’t Hoff factor will be
What happens to freezing point of benzene when naphthalene is added? (OJEE 2010)
The colligative property is not represented by (AllMS 2013)
What happens when an egg is kept in saturated solution of NaCl after removing its hard shell in dil. HCl?
A plant cell shrinks when it is kept in
The concentration (in mol/L) of the solution having osmotic pressure 0.0821 atm at 300 K will be
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)
The temperature at which 10% aqueous solution (w/V) of glucose will exhibit the osmotic pressure of 16.4 atm, is (R = 0.082 dm3 atm K–1 mol–1)
Camphor is often used in molecular mass determination because
Osmotic pressure is proportional to
A semipermeable membrane
A 6% solution of urea is isotonic with
The boiling point of 0.1 molal aqueous solution of urea is 100.18ºC at 1 atm. The molal elevation constant of water is
Which one of the following statements given below concerning properties of solution, describes a colligative effect? (AllMS 2013)