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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 the lowering of vapour pressure is greater in a solution, what can generally be inferred about its solute particles?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryIf both components of a binary solution are volatile, which statement about the total vapour pressure is correct?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryIf the solute in a solution is non-volatile, which component mainly contributes to total vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3Easy ChemistryIf the mole fraction of the solvent is 0.6 and the vapour pressure of the pure solvent is 200 units, what is the vapour pressure of the solution?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryIf the relative lowering of vapour pressure is 0.2, what is the mole fraction of the solvent?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Medium ChemistryWhich condition should be kept the same when comparing the vapour pressures of a solution and the pure solvent?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3Easy ChemistryIf a vapour-pressure versus temperature graph rises upward, what does it indicate?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3Easy ChemistryWhat can be the main reason for deviation from Raoult’s law in a non-ideal solution?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Medium ChemistryWhich statement is most correct for an ideal solution?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Medium ChemistryWhy is equilibrium vapour pressure not properly established in an open container?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryIn a closed container, which two rates become equal when liquid-vapour equilibrium is established?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryWhat is the correct particle-level reason for increase in vapour pressure on increasing temperature?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryHow is the vapour pressure of a liquid with strong intermolecular attraction?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3Easy ChemistryAt the same temperature, liquid A has higher vapour pressure than liquid B. Which conclusion is correct?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3Easy ChemistryIf solute particles associate to form fewer particles, how does the lowering of vapour pressure change?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Medium ChemistryIf a solute dissociates into more particles in solution, what happens to lowering of vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Medium ChemistryWhy is lowering of vapour pressure called a colligative property?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy ChemistryIf the external pressure is decreased, how does the boiling point of a liquid change?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3Easy ChemistryAt the boiling point, the vapour pressure of a liquid becomes equal to what?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3Easy ChemistryWhen a non-volatile solute lowers the vapour pressure of a solution, what happens to the boiling point?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4Easy