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Dissociation

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

ChemistryWhich statement correctly describes the characteristic of colligative properties?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15EasyChemistryA solution of NaCl is 75% dissociated. What is the van’t Hoff factor (i) for this solution?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15MediumChemistryIn a solution, the observed molar mass of a solute is half of its normal value. What is its van’t Hoff factor (i)?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 16MediumChemistryIf the elevation in boiling point of a solution is greater than the expected value, which reason is most suitable?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15MediumChemistryIn which situation is the van’t Hoff factor of a solute expected to be less than 1?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15MediumChemistryUnder which condition will the van’t Hoff factor be very close to 1?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14EasyChemistryThe normal molar mass of a solute is 120 g mol⁻¹, while its observed molar mass from the osmotic-pressure method is 60 g mol⁻¹. What is the van’t Hoff factor?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 14MediumChemistryAssuming complete dissociation, what is the effective molarity of a 0.05 M K₄[Fe(CN)₆] solution?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13HardChemistryIn 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 13MediumChemistryIn a solution of an unknown solute, the van’t Hoff factor (i) is found to be much greater than 1. What is the most suitable explanation?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14MediumChemistryIn which situation will the observed molar mass of a solute be less than its true molar mass?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14MediumChemistryWhat is the effective molar concentration of particles in a 0.1 M K₃PO₄ solution on complete dissociation?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14EasyChemistryFor a 0.05 m AlCl₃ solution with complete dissociation, how will its freezing-point depression compare with that of a non-dissociated 0.05 m solution?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14MediumChemistryIf Al₂(SO₄)₃ dissociates completely into ions in dilute aqueous solution, what is the ideal value of the van’t Hoff factor (i)?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14MediumChemistryIf the true molar mass of a solute is 120 g mol⁻¹ and the observed molar mass from a colligative property is 80 g mol⁻¹, what is the value of (i)?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14MediumChemistryWhile calculating molar mass from colligative properties, if the solute dissociates into ions, what error occurs if (i) is not used?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15MediumChemistryWhen abnormal molar mass is obtained, which correction is included in colligative property formulas?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15EasyChemistryIf the boiling-point elevation of a solution is greater than the value expected for a non-electrolyte, what may be the reason?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15MediumChemistryIf 2 moles of particles are effectively present in a solution while 1 mole was expected for the ideal non-dissociated state, what is the van't Hoff factor i?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15EasyChemistryIn a solution, the actual number of solute particles is twice the expected number. What is its van't Hoff factor?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Easy