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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 solution has solvent mole fraction 0.60 and pure solvent vapour pressure 120 kPa. Assuming a non-volatile solute, what is the solution vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 8Easy ChemistryIn a Raoult’s law graph, how does partial pressure vary with mole fraction for an ideal binary solution?Class 12Chapter 01: Solutions4: Vapour PressureLevel 8Easy ChemistryWhat is considered the reason for negative deviation in a mixture of acetone and chloroform?Class 12Chapter 01: Solutions4: Vapour PressureLevel 11Medium ChemistryWhy can a mixture of benzene and toluene show nearly ideal behaviour?Class 12Chapter 01: Solutions4: Vapour PressureLevel 10Easy ChemistryWhich type of mixture can form a maximum-boiling azeotrope?Class 12Chapter 01: Solutions4: Vapour PressureLevel 12Medium ChemistryWhich type of mixture can form a minimum-boiling azeotrope?Class 12Chapter 01: Solutions4: Vapour PressureLevel 12Medium ChemistryIn a solution showing negative deviation, which statement about heat of mixing is generally correct?Class 12Chapter 01: Solutions4: Vapour PressureLevel 11Medium ChemistryIn a solution showing positive deviation, which statement about volume change on mixing can generally be true?Class 12Chapter 01: Solutions4: Vapour PressureLevel 11Medium ChemistryIf the mole fraction of a non-volatile solute is increased, what happens to the vapour pressure of the solution?Class 12Chapter 01: Solutions4: Vapour PressureLevel 6Easy ChemistryWhy is the vapour phase richer in the more volatile component in a volatile liquid mixture?Class 12Chapter 01: Solutions4: Vapour PressureLevel 8Easy ChemistryWhy is equilibrium vapour pressure considered independent of the amount of liquid if some liquid remains in the vessel?Class 12Chapter 01: Solutions4: Vapour PressureLevel 8Easy ChemistryWhat is the main reason for the increase in vapour pressure of a pure liquid when temperature increases?Class 12Chapter 01: Solutions4: Vapour PressureLevel 6Easy ChemistryIn which situation can the vapour pressure of a solution equal that of the pure solvent?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Easy ChemistryWhich statement correctly expresses the idea of Raoult’s law?Class 12Chapter 01: Solutions4: Vapour PressureLevel 6Easy ChemistryA liquid has a higher vapour pressure than another liquid at the same temperature. Which statement about the first liquid is most appropriate?Class 12Chapter 01: Solutions4: Vapour PressureLevel 6Easy ChemistryWhen a non-volatile solute is added to a solvent, why does the solvent vapour pressure decrease at molecular level?Class 12Chapter 01: Solutions4: Vapour PressureLevel 9Easy ChemistryIf the total vapour pressure of a liquid mixture is lower than the ideal value, which conclusion is correct?Class 12Chapter 01: Solutions4: Vapour PressureLevel 8Easy ChemistryWhen the actual vapour pressure of a solution is higher than its ideal value, what type of molecular attraction is indicated?Class 12Chapter 01: Solutions4: Vapour PressureLevel 8Easy ChemistryThe vapour pressure of a pure solvent is 100 kPa and that of its solution is 82 kPa. What is the relative lowering of vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5Easy ChemistryIn an ideal solution, the vapour pressure of the pure solvent is 90 kPa and the mole fraction of solvent is 0.70. What will be the vapour pressure of the solution?Class 12Chapter 01: Solutions4: Vapour PressureLevel 6Easy