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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।

ChemistryA solution has a freezing-point depression of 0.93 K. If Kf = 1.86 K kg mol⁻¹ and the solute is non-dissociated, what is the molality?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13EasyChemistryWhich solution will have the highest osmotic pressure at the same temperature if all solutions are 0.1 M and dissociation is complete?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13EasyChemistryIf a 0.5 m non-dissociated solute produces a boiling-point elevation of 0.26 K, what is the value of Kb?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13MediumChemistryWhen 5 g of a solute is dissolved in 250 g of solvent, the molality is 0.2 m. What is the molar mass of the solute?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13MediumChemistryWhy does the freezing point of a solution decrease when a non-volatile solute is added?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13MediumChemistryIf a 0.1 m BaCl₂ solution has 80% dissociation, what is the value of the van’t Hoff factor i?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13MediumChemistryWhich of the following statements about osmotic pressure is correct?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13MediumChemistryWhat is the main reason for the elevation of the boiling point of a solution?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13EasyChemistryWhat happens if a blood cell is placed in a highly concentrated salt solution?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13EasyChemistryA 0.1 m solution has ΔTb = 0.052 K. If Kb = 0.52 K kg mol⁻¹ for the solvent, what is the van’t Hoff factor i?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13EasyChemistryIf the molar mass obtained from freezing-point depression is higher than the true value, what may be happening in the solution?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13MediumChemistryWhich option gives the correct order of boiling points for equal-molality solutions, assuming complete dissociation?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13MediumChemistryA solution contains 0.01 mol solute in 1 L and its osmotic pressure is measured at 300 K. If the solute completely dissociates into 2 ions, how will its osmotic pressure compare with that of an ideal non-dissociated solute?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13MediumChemistryA solute is found to have a van’t Hoff factor i = 0.5. Which conclusion is most appropriate?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13EasyChemistryWhat is the basic principle of reverse osmosis used to obtain pure water from seawater?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13MediumChemistryIf the boiling point elevation of a solution is greater than the expected value, what could be a possible reason?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13MediumChemistryWhich statement correctly identifies colligative properties?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13EasyChemistryIf a 0.2 m glucose solution has ΔT_f = 0.372 K, what will be the approximate ΔT_f of a 0.2 m NaCl solution in the same solvent, assuming complete dissociation?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13MediumChemistryIf two solutions separated by a semipermeable membrane show no net flow of solvent, what are they called?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13EasyChemistryFor a solution, Δp/p⁰ = 0.02. Assuming a very dilute solution with a non-volatile solute, what is the approximate mole fraction of the solute?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium