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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।

ChemistryA 500 mL solution is prepared from 3.6 g of a non-dissociated solute. Its osmotic pressure at 300 K is 0.738 atm. What is the molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16MediumChemistryIn the osmotic pressure method, 2 g of a solute is used to prepare 1 L of solution. At 300 K, the osmotic pressure is 0.492 atm. If R = 0.082 L atm mol⁻¹ K⁻¹, what is the molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16MediumChemistryIf the observed molar mass is 1.25 times the true molar mass, what is the van’t Hoff factor (i)?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 16MediumChemistryIf the observed molar mass of a solute is 2/3 of its true molar mass, what is the van’t Hoff factor (i)?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 16MediumChemistryWhich colligative property is most suitable for determining the molar mass of polymers with very high molar masses?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16MediumChemistryWhile determining molar mass by the lowering of vapour pressure method, if a solute undergoes complete dimerisation in benzene, how will its observed molar mass compare with its true molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 16MediumChemistryWhen 1.5 g of a non-dissociated solute is dissolved in 150 g of solvent, the elevation in boiling point is 0.104 K. If K_b = 0.52 K kg mol^-1, what is the molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16MediumChemistryIf 1.2 g of a solute forms a 0.02 m solution and the solvent mass is 0.5 kg, what is the molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18MediumChemistryWhat should be done first in a numerical problem on molar-mass determination?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18EasyChemistryIn which case is it safest to treat the observed molar mass as the normal molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 18EasyChemistryWhich relation gives the number of moles from mass during molar mass determination?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18EasyChemistryIf the mass of solvent is given in grams, into which unit should it be converted before calculating molality?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18EasyChemistryWhich solute will show normal colligative behaviour during molar mass determination?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18EasyChemistryWhich relation helps determine molar mass by the osmotic-pressure method?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18MediumChemistryWhich is the correct formula for molar mass from boiling-point elevation when the masses are given in grams?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18MediumChemistryWhich is the correct formula for molar mass from freezing-point depression when w₁ is the mass of solvent in grams and w₂ is the mass of solute in grams?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18MediumChemistryIf 2 g of solute is dissolved in 100 g of solvent, what does w₂ represent in the molar-mass formula?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18EasyChemistryWhich relation is correct between the van't Hoff factor (i) and molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 18EasyChemistryIf 0.1 mol of solute is dissolved in 1 kg of solvent, what is the molality?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 18EasyChemistryIf the freezing point of a solution is lower than that of the pure solvent, which colligative property does this represent?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Easy