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Colligative Properties

Class 12 Chemistry के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ChemistryA 0.2 m solution has a freezing-point depression of 0.186 K. If Kf = 1.86 K kg mol⁻¹, what is the van’t Hoff factor and what does it indicate?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryWhich of the following colligative properties is not directly applicable to a solution containing a volatile solute?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryWhich of the following statements about the osmotic pressure of a solution is correct?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryA 0.1 m solution has a freezing-point depression of 0.279 K. If Kf = 1.86 K kg mol−1, what is the van’t Hoff factor i?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryWhich of the following properties depends on the number of solute particles present in a solution rather than on the chemical nature of the solute?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Easy ChemistryWhich of the following statements about elevation in boiling point is correct?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Easy ChemistryAn ideal solution has an osmotic pressure of 2.46 atm at 300 K. At the same concentration, what will its osmotic pressure be at 600 K?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryIn which of the following situations is the observed molar mass of a solute greater than its true molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 13Hard ChemistryA solution has a van’t Hoff factor, i = 2.5. If the solute is of the type AB₂ and dissociates into ions, what is its degree of dissociation?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryAmong aqueous solutions of equal concentration, which solute will have the highest van’t Hoff factor, assuming complete ionisation?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryIf the relative lowering of vapour pressure of a solution is 0.20 and the solute is non-volatile, what is the mole fraction of the solvent?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryA 0.1 M glucose solution and a 0.1 M NaCl solution are separated by a semipermeable membrane. If NaCl is completely dissociated, toward which solution will the net flow of water occur?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryA 0.4 m non-dissociated solution has a freezing-point depression of 0.744 K. What will be the freezing-point depression of a 0.2 m CaCl₂ solution in the same solvent if CaCl₂ dissociates completely?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Hard ChemistryIn which solution is the van’t Hoff factor i most likely to be less than 1 because of association of solute molecules?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryIn a solution, 20% of the solute particles associate in pairs to form dimers. What is the value of the van’t Hoff factor i?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryFor a salt of the type AB₂, the degree of dissociation is x. Which expression for the van’t Hoff factor i is correct?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryWhich colligative property is most suitable for determining the molar mass of a high-molar-mass, heat-sensitive solute such as a protein?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryA solution contains 0.01 mol of a non-dissociated solute in 500 mL of solution. What is its osmotic pressure at 300 K?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryWhich option correctly matches a colligative property with the concentration term conventionally used in its formula?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryAssuming complete dissociation, which of the following aqueous solutions of equal molality will show the greatest depression in freezing point?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium