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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।

ChemistryIf a solution has much lower vapour pressure than the pure solvent, which conclusion is more likely?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 5Easy ChemistryWhich statement best describes the effect of a non-volatile solute?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 3Easy ChemistryFor formation of an ideal solution, what are the approximate heat and volume changes on mixing?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Easy ChemistryHow is vapour pressure related to boiling point?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryWhich solution is expected to show greater lowering of vapour pressure?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 5Easy ChemistryThe mole fraction of a component in the vapour phase is related to what?Class 12Chapter 01: Solutions4: Vapour PressureLevel 6Easy ChemistryIf the mole fraction of the more volatile component increases in an ideal binary solution, what happens to total vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Easy ChemistryWhat happens to equilibrium vapour pressure if the surface area of a liquid is increased in a closed vessel?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Medium ChemistryWhy does the equilibrium vapour pressure of a liquid generally increase when temperature is increased?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryIf the actual vapour pressure of a solution is less than the pressure predicted by Raoult's law, what type of deviation is it?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryWhich statement correctly identifies an ideal solution?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryFor an ideal solution of two volatile liquids, how is total vapour pressure obtained?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryIn which situation is positive deviation from Raoult's law more likely?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Easy ChemistryIn which situation is negative deviation from Raoult's law observed?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Easy ChemistryAccording to Raoult's law, the partial vapour pressure of the solvent in an ideal solution is proportional to what?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryWhy does the vapour pressure of a solution decrease when a non-volatile solute is added to a liquid?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3Easy ChemistryWhen equilibrium is established between a liquid and its vapour in a closed vessel, vapour pressure mainly depends on which factor?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Medium ChemistryIn numerical questions related to vapour pressure, what should be checked first?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Medium ChemistryWhy does the boiling point of a solution increase when a non-volatile solute is added?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Medium ChemistryIf a solution contains two volatile liquids and one has a very high pure vapour pressure, how will it affect the total vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Medium