19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Which one of the following statements given below concerning properties of solution, describes a colligative effect? (AllMS 2013)
The colligative property is not represented by (AllMS 2013)
6.02 × 1020 molecules of urea are present in 100 mL of its solution. The concentration of solution is (NEET 2013)
A solution has higher osmotic pressure than its standard solution. Which of the following term will be used for this solution? (OJEE 2012)
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)
Mole fraction of the solute in a 1.00 molal aqueous solution is (AIPMT 2011)
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)
The system that forms maximum boiling azeotrope is
The osmotic pressure is expressed in the unit of (VMMC 2010)
Isotonic solutions are the solutions having the same (RPMT 2010)
What happens when an egg is kept in saturated solution of NaCl after removing its hard shell in dilute HCl? (OJEE 2010)
What happens to freezing point of benzene when naphthalene is added? (OJEE 2010)
25.3 g of sodium carbonate, Na₂CO₃ is dissolved in enough water to make 250 mL of solution. If sodium carbonate dissociates completely, molar concentration of sodium ion and carbonate ions respectively are (Molar mass…
Calculate the mass of urea (NH₂CONH₂) required in making 0.25 molal aqueous solution using 2.5 L water. (Haryana PMT 2010)
Assertion: 1.575g H₂C₂O₄.2H₂O in 250 mL solution makes it 0.1 N. Reason : H₂C₂O₄.2H₂O is a dihydrate organic acid.
60 mL of N/5 H₂SO₄, 10 mL of N/2 HNO₃ and 30 mL of N/10 HCl are mixed together. The strength of the resulting mixture is (UP CPMT 2009)
Out of the compounds below, the vapour pressure of
The molarity of a solution containing 5.0g of NaOH in 250 mL solution is (AFMC 2009)
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)
Van’t Hoff factor more than unity indicates that the solute in solution is (Manipal 2008)
Molarity of a given orthophosphoric acid solution is 3 M. Its normality is (KCET 2007)
An aqueous solution of methanol in water has vapour pressure (MP PMT 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 has