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5 Colligative Properties

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

ChemistryIf 0.05 m Al₂(SO₄)₃ dissociates completely, what will be its effective molality?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13MediumChemistryFor 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 13MediumChemistryWhich 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 13MediumChemistryA 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 13MediumChemistryWhich option correctly matches a colligative property with the concentration term conventionally used in its formula?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13MediumChemistryIn a solution, the observed depression in freezing point is 40% of the expected value for a non-dissociated solute. What is the most appropriate conclusion about the solute?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13HardChemistryIn which situation will the observed molar mass of a solute be higher than its true molar mass?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13MediumChemistryA solution has a solute mole fraction of 0.08. Assuming that the solute is non-volatile, what is the relative lowering of vapour pressure?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13EasyChemistryIn which situation will the molar mass of a solute determined from a colligative property be less than its true molar mass?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13MediumChemistryAssuming complete dissociation, which solute will produce the greatest depression in freezing point in aqueous solutions of equal molality?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13MediumChemistryIn a solution of a non-volatile solute, which observation most clearly indicates association of solute molecules?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13MediumChemistryWhich colligative property is particularly suitable for determining the molar mass of a solute when the solution is very dilute?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13MediumChemistryFor a 0.1 m non-dissociated solution, the expected freezing-point depression is 0.186 K. The observed freezing-point depression is 0.279 K. What is the van’t Hoff factor i for the solute?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13MediumChemistryIf the ebullioscopic constant K_b is larger, how will the elevation in boiling point behave for the same molality and the same van’t Hoff factor i?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13EasyChemistryWhat happens to the vapour pressure of the solvent when the amount of a non-volatile solute in a solution is increased?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14EasyChemistryA solution and a pure solvent are separated by a semipermeable membrane. During initial osmosis, toward which side will the solvent move?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14EasyChemistryIf the soil solution outside a plant root becomes highly concentrated, what will happen to water absorption?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14MediumChemistryIf 0.1 M NaCl and 0.1 M glucose solutions are compared, what is the osmotic pressure of the NaCl solution, assuming complete dissociation?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14MediumChemistryWhy is the freezing point of a solution lower than that of the pure solvent?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14MediumChemistryIf the osmotic pressure of a solution is to be increased while the temperature remains constant, which change will most directly achieve this?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14Medium