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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।

ChemistryWhich of the following statements about the osmotic pressure of a solution is correct?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13MediumChemistryWhich of the following properties depends on the number of solute particles present in a solution rather than on the chemical nature of the solute?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13EasyChemistryWhich of the following statements about elevation in boiling point is correct?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13EasyChemistryA solution has a van’t Hoff factor, i = 2.5. If the solute is of the type AB₂ and dissociates into ions, what is its degree of dissociation?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13MediumChemistryDue to the salts dissolved in seawater, which statement is correct compared with pure water?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13EasyChemistryAssuming complete dissociation, which of the following aqueous solutions of equal molality will show the greatest depression in freezing point?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 13EasyChemistryA solution shows an osmotic pressure of 0.615 atm at 25 °C. If R = 0.082 L atm mol⁻¹ K⁻¹, what is the approximate molarity of the non-dissociated solute?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14MediumChemistryWhich property depends only on the number of solute particles present in a solution and not on the chemical nature of the solute?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14EasyChemistryIf the observed van’t Hoff factor for \(\mathrm{Ca(NO_3)_2}\) is \(i=2.6\), what is its degree of dissociation? Assume that association is negligible.Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15MediumChemistryWhat is the osmotic pressure of a \(0.05\,\mathrm{M}\) \(\mathrm{CaCl_2}\) solution at \(300\,\mathrm{K}\), assuming complete dissociation? Take \(R=0.082\,\mathrm{L\,atm\,mol^{-1}\,K^{-1}}\).Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15MediumChemistryIf the observed molar mass of KCl is \(\frac{2}{3}\) of its true molar mass, what is the value of the van’t Hoff factor \(i\)?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 15MediumChemistryA solution contains 0.5 mol of solute dissolved in 1 kg of solvent. What is its molality?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15EasyChemistryIf a 0.2 molal non-dissociating solute produces a certain depression in freezing point, what will be the ideal depression in freezing point for a 0.2 molal NaCl solution?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15MediumChemistryWhich pair contains only colligative properties?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15EasyChemistryWhy is osmotic pressure considered a colligative property?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13EasyChemistryWhen 10 g of a non-electrolyte solute is dissolved in 500 g of water, the depression in freezing point is ΔT_f = 0.186 K. Taking K_f = 1.86 K kg mol⁻¹, what is the molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 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 13MediumChemistryAmong aqueous solutions of equal molality, assuming complete dissociation, which solute will produce the greatest depression in freezing point?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium