19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Which one of the following is not a colligative property?
Raoult's law states that for a dilute solution,
The relative lowering of the vapour pressure is equal to the ratio between the numbers of
What happens to freezing point of benzene when naphthalene is added?
The order of boiling points of four equimolar aqueous solutions is C < B < A < D. The correct order of their freezing points is
Camphor is often used in molecular mass determination because
Osmotic pressure is proportional to
A plant cell shrinks when it is kept in
What happens when an egg is kept in saturated solution of NaCl after removing its hard shell in dil. HCl?
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
Which of the following aqueous solutions has the highest boiling point?
The molecular weight of benzoic acid in benzene as determined by depression in freezing point method corresponds to:
Molarity of a given orthophosphoric acid solution is 3 M. Its normality is (KCET 2007)
The concentration (in mol/L) of the solution having osmotic pressure 0.0821 atm at 300 K will be (AFMC 2009)
The molarity of a solution containing 5.0g of NaOH in 250 mL solution is (AFMC 2009)
What happens to freezing point of benzene when naphthalene is added? (OJEE 2010)
What happens when an egg is kept in saturated solution of NaCl after removing its hard shell in dilute HCl? (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)
Mole fraction of the solute in a 1.00 molal aqueous solution is (AIPMT 2011)
A solution has higher osmotic pressure than its standard solution. Which of the following term will be used for this solution? (OJEE 2012)
6.02 × 1020 molecules of urea are present in 100 mL of its solution. The concentration of solution is (NEET 2013)
(ii) There will be no change in enthalpies on mixing the two components, i.e., mixing H
At 100ºC the vapor pressure of a solution of 6.5g of a solute in 100 g water is 732 mm. If Kb = 0.52, the boiling point of this solution will be (NEET 2016)
The normality of 10% (weight/volume) acetic acid is
Which one of the following statements is false?