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Colligative Properties

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

ChemistryIf the apparent molar mass of a solute is found less than its actual molar mass, what is the possible reason?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15MediumChemistryAmong the following solutions of equal molality, which will show the greatest freezing point depression?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15MediumChemistryIf the freezing point of pure solvent is \(4^{\circ}C\) and \(\Delta T_f = 2.5^{\circ}C\), what will be the freezing point of the solution?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15MediumChemistryIf the boiling point of the pure solvent is \(90^{\circ}\mathrm{C}\) and \(\Delta T_b=1.8^{\circ}\mathrm{C}\), what will be the boiling point of the solution?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15EasyChemistryIf \(i=3\), \(K_f=1.86\), and \(m=0.2\), what will be \(\Delta T_f\)?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15EasyChemistryIf \(i=2\), \(K_b=0.52\), and \(m=1\), what will be \(\Delta T_b\)?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15EasyChemistryIf the moles of solute are 0.25 and the moles of solvent are 0.75, what is the mole fraction of the solute?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15MediumChemistryWhich of the following properties depends only on the number of solute particles present in a solution and not on their nature?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15EasyChemistryIn a solution containing a non-volatile solute, relative lowering of vapour pressure is equal to which quantity?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15MediumChemistryIn an exam question, the solute is described as non-dissociating and non-volatile. What is the safest initial value to use while solving colligative-property questions?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14EasyChemistryFor a solution, \(\Delta T_b\) is larger. With the same solvent and the same \(K_b\), what is the most suitable meaning?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14MediumChemistryWhich of the following is not a colligative property that depends on the number of solute particles present in a solution?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14EasyChemistryIf two solute particles associate to form one particle, what is the ideal value of the van’t Hoff factor i?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14EasyChemistryWhich of the following statements about colligative properties is correct?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14EasyChemistryTwo solutions have equal osmotic pressure at the same temperature. If their solutes are non-dissociating, what can be said about their molar concentrations?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14MediumChemistryA solution has ΔTf = 1.86 K, Kf = 1.86 K kg mol⁻¹, and molality m = 0.5 mol kg⁻¹. What is the van’t Hoff factor i?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14MediumChemistryIf the solute is volatile, why must the simple vapour-pressure-lowering relation for a non-volatile solute be used carefully?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14MediumChemistryA student used Kf while calculating ΔTb. What is the mistake?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14EasyChemistryThe osmotic pressure of a solution is 2 units. If its concentration is tripled at the same temperature, what will be the new osmotic pressure?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14EasyChemistryWhich concentration unit is used directly in calculating freezing-point depression and boiling-point elevation?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 14Easy

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