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

ChemistryIf the molality is 0.2 m and the mass of solvent is 0.25 kg, how many moles of solute are present?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 16EasyChemistryIf 8 g of a solute corresponds to 0.10 mol, what is its molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16EasyChemistryIf a 0.02 M solution has a volume of 1 L, how many moles of solute are present?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 16EasyChemistryIf a 0.2 m solution is prepared using 0.5 kg of solvent, how many moles of solute are present?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 16EasyChemistryIn molar-mass determination by boiling-point elevation, which quantity is usually calculated first?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16MediumChemistryIf 5 g of solute is 0.05 mol, what is its molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16EasyChemistryIf ΔTᶠ = 0.372 K and Kᶠ = 1.86 K kg mol⁻¹, what is the molality of a non-dissociated solution?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 16EasyChemistryWhich colligative property is most suitable for determining the molar mass of high-molar-mass solutes such as proteins and polymers?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16MediumChemistryIf 2 g of solute corresponds to 0.02 mol, what is its molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16EasyChemistryWhich simple relation is used to calculate molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16EasyChemistryWhy are colligative properties mainly used for determining molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16EasyChemistryIf MgCl₂ undergoes 50% dissociation, what is the value of the van’t Hoff factor (i)?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15MediumChemistryWhich statement correctly describes the characteristic of colligative properties?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15EasyChemistryIf the freezing point of a solution is 271.9 K and that of the pure solvent is 273.0 K, what is the depression in freezing point?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15EasyChemistryIf the mole fraction of the solute in a solution is 0.05 and the vapour pressure of the pure solvent is 100 mmHg, what is the approximate vapour pressure of the solution, assuming the solute is non-volatile?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15MediumChemistryWhich of the following is not a colligative property?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 16EasyChemistryThe osmotic pressure of a polymer solution is very small. Which method is most suitable for determining its molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 15MediumChemistryIn which situation is the van’t Hoff factor of a solute expected to be less than 1?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15MediumChemistryA solution has a relative lowering of vapour pressure of 0.25. If the total number of moles in the solution is 4, how many moles of solute are present?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14MediumChemistryWhy are lowering of vapour pressure and elevation of boiling point closely related?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14Medium