19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
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)
Which one of the following statements given below concerning properties of solution, describes a colligative effect? (AllMS 2013)
The osmotic pressure is expressed in the unit of (VMMC 2010)
The system that forms maximum boiling azeotrope is
What happens to freezing point of benzene when naphthalene is added? (OJEE 2010)
A solution of two liquids boils at a temperature more than the boiling point of either of them. Hence, the binary solution shows (KCET 2011)
What happens when an egg is kept in saturated solution of NaCl after removing its hard shell in dilute HCl? (OJEE 2010)
Out of the compounds below, the vapour pressure of
Isotonic solutions are the solutions having the same (RPMT 2010)
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)
Benzoic acid is dissolved in benzene, van’t Hoff factor will be
Which of the following aqueous solutions has the highest boiling point?
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)
Mole fraction of the solute in a 1.00 molal aqueous solution is (AIPMT 2011)
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)
The concentration (in mol/L) of the solution having osmotic pressure 0.0821 atm at 300 K will be
A 6% solution of urea is isotonic with
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
The concentration (in mol/L) of the solution having osmotic pressure 0.0821 atm at 300 K will be (AFMC 2009)
Osmotic pressure is proportional to
A semipermeable membrane
Camphor is often used in molecular mass determination because
A plant cell shrinks when it is kept in