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Class 12 Mcq

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

ChemistryA liquid has low vapour pressure. Which statement about its boiling point is generally correct?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3Easy ChemistryA liquid has high vapour pressure. Which inference about its intermolecular forces is correct?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3Easy ChemistryWhich difference between vapour pressure and rate of evaporation is correct?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryWhich mixture is more likely to form a minimum boiling azeotrope?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Easy ChemistryWhich mixture is likely to form a maximum boiling azeotrope?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Easy ChemistryWhy does the boiling point of a solution increase due to lowering of vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryWhy does a liquid start boiling at lower temperature when external pressure is reduced?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryIf solute particles associate to form larger particles, how can the observed lowering of vapour pressure be affected?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Medium ChemistryWhy can an electrolyte solute show comparatively greater lowering of vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Medium ChemistryWhat is relative lowering of vapour pressure equal to when the solute is non-volatile?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryWhich statement is not correct for an ideal solution?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3Easy ChemistryWhy can total vapour pressure be higher than the ideal value in a solution showing positive deviation?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryIn an ideal solution, pure vapour pressure of component A is 180 kPa and its liquid mole fraction is 0.20. What is the partial pressure of component A?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Easy ChemistryWhy does equilibrium vapour pressure not change when the amount of liquid is halved if some liquid still remains?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryUnder which condition is the equilibrium vapour pressure of a liquid properly established?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3Easy ChemistryA solution has solvent mole fraction 0.85 and pure solvent vapour pressure 40 kPa. What is the vapour pressure of the solution?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Easy ChemistryWhy does the escaping tendency of molecules decrease in a solution showing negative deviation?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryIf the vapour pressure of a real solution is greater than the value predicted by Raoult's law, what type of deviation is it?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3Easy ChemistryIn an ideal solution of two volatile liquids, pure vapour pressure of component A is higher than that of component B. At equal mole fractions, which will be richer in vapour?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryA solution has lower vapour pressure than the pure solvent. Which conclusion is most appropriate?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3Easy