19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
What is the mole fraction of glucose in 10% w/W glucose solution?
The mole fraction of C₂H₅OH (Mol. wt. = 46) in 5 molal aqueous ethyl alcohol solution is
The percentage (by weight) of sodium hydroxide in a 1.25 molal NaOH solution is
What would happen if a thin slice of sugar beet is placed in a concentrated solution of NaCl?
In a solution of 7.8 g of benzene (C₆H₆) and 46 g of toluene (C₆H₅CH₃), the mole fraction of benzene is
An aqueous solution of urea containing 18g urea in 1500 cm3 of the solution has a density equal to 1.052 g/cm3. If the molecular weight of urea is 60, then the molality of the solution is
The molarity of a solution obtained by mixing 800 mL of 0.5 M HCl with 200 mL of 1M HCl will be
The vapour pressures of two liquids A and B in their pure states are in the ratio of 1: 2. A binary solution of A and B contains A and B in the mole proportion of 1: 2. The mole fraction of A in the vapour phase of th…
The vapour pressure of water at room temperature is 23.8 mm Hg. The vapour pressure of an aqueous solution of sucrose with mole fraction 0.1 is equal to
What is the mass percentage of carbon tetrachloride if 22g of benzene is dissolved in 122g of carbon tetrachloride?
Vapour pressure of pure ‘A’ is 70 mm of Hg at 25ºC. It forms and ideal solution with ‘B’ in which mole fraction of A is 0.8. If the vapour pressure of the solution is 84 mm of Hg at 25ºC, the vapour pressure of pure ‘…
If molality of the dilute solution is doubled, the value of molal depression constant (Kf) will be(NEET 2017)
(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)
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)
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)
The system that forms maximum boiling azeotrope is
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)
Isotonic solutions are the solutions having the same (RPMT 2010)
The osmotic pressure is expressed in the unit of (VMMC 2010)
What happens to freezing point of benzene when naphthalene is added? (OJEE 2010)
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)
What happens when an egg is kept in saturated solution of NaCl after removing its hard shell in dilute HCl? (OJEE 2010)