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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।

ChemistryWhy does actual vapour pressure become higher in positive deviation?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryWhat may cause negative deviation from Raoult’s law?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryIf the actual vapour pressure of a solution is higher than expected from Raoult’s law, which deviation is shown?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryIf the mole fraction of a component increases in an ideal solution, what happens to its partial vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3Easy ChemistryIf P_A = 45 units and P_B = 55 units, what is the total vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3Easy ChemistryIf X_A = 0.3 and P_A° = 160 units, what is P_A?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryIn an ideal binary solution, which formula gives the partial vapour pressure of component A?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryHow is total vapour pressure obtained in an ideal solution of two volatile liquids?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryIf the vapour pressure of the pure solvent is 100 units and that of the solution is 90 units, what is the relative lowering?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryThe mole fraction of a non-volatile solute is 0.15. What is the relative lowering of vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryFor an ideal solution containing a non-volatile solute, relative lowering of vapour pressure is equal to what?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryIf the vapour pressure of a solution is 75% of the vapour pressure of the pure solvent, what is the mole fraction of the solvent?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryThe vapour pressure of pure solvent is 120 and the mole fraction of solvent is 0.8. What is the vapour pressure of the solution?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryIf the amount of non-volatile solute in a solution is increased, what happens to the solvent vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3Easy ChemistryIn a solution, mole fraction of solvent is 0.75. Compared with pure solvent, how will its vapour pressure be?Class 12Chapter 01: Solutions4: Vapour PressureLevel 6Medium ChemistryIf the vapour pressure of a solution is lower than that of the pure solvent, what may be the reason?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Easy ChemistryIn an ideal solution, total vapour pressure is obtained from what?Class 12Chapter 01: Solutions4: Vapour PressureLevel 8Medium ChemistryLowering of vapour pressure is easily studied in which type of solution?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 5Easy ChemistryWhich method can lower the vapour pressure of a solvent?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Easy ChemistryWhen a non-volatile solute is added to a pure solvent, what happens to the mole fraction of solvent?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 6Easy