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Vapour Pressure

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

ChemistryIf vapour pressure has become equal to external pressure, what can be said about the liquid?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3EasyChemistryThe vapour pressure of a liquid increases rapidly with temperature. What is the most suitable reason?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4EasyChemistryWhy is relative lowering of vapour pressure useful in finding molar mass of a solute?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5MediumChemistryIn an ideal binary solution, pure vapour pressure of A is 300 kPa and that of B is 100 kPa. Mole fraction of A is 0.25. What is total vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 6MediumChemistryIf actual vapour pressure of a solution is greater than ideal value, what indication about volume change on mixing may be obtained?Class 12Chapter 01: Solutions4: Vapour PressureLevel 6MediumChemistryIf actual vapour pressure of a solution is lower than ideal value, what indication about energy change on mixing may be obtained?Class 12Chapter 01: Solutions4: Vapour PressureLevel 6MediumChemistryFor an ideal solution, what is the usual nature of the graph between total vapour pressure and liquid composition?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5EasyChemistryA solution has solvent mole fraction 0.92. The vapour pressure of pure solvent is 75 kPa. What is the lowering of vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5EasyChemistryIf more non-volatile solute is added to a solution, what happens to the vapour pressure of the solvent?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4EasyChemistryWhich option gives the correct mathematical meaning of Raoult's law?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3EasyChemistryA liquid has low vapour pressure. Which statement about its boiling point is generally correct?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3EasyChemistryA liquid has high vapour pressure. Which inference about its intermolecular forces is correct?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3EasyChemistryWhich difference between vapour pressure and rate of evaporation is correct?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4EasyChemistryIn an ideal binary solution, the mole fraction of component A is 0.40 and the vapour pressure of pure component B is 120 kPa. What is the partial pressure of B?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5EasyChemistryWhich mixture is more likely to form a minimum boiling azeotrope?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5EasyChemistryWhich mixture is likely to form a maximum boiling azeotrope?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5EasyChemistryWhy does the boiling point of a solution increase due to lowering of vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4EasyChemistryWhy does a liquid start boiling at lower temperature when external pressure is reduced?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4EasyChemistryIf solute particles associate to form larger particles, how can the observed lowering of vapour pressure be affected?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5MediumChemistryWhy can an electrolyte solute show comparatively greater lowering of vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Medium