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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।

ChemistryHow does the vapour pressure of a solution change compared with the pure solvent when a non-volatile solute is added?Class 12Chapter 01: Solutions4: Vapour PressureLevel 8Easy ChemistryWhile solving questions based on colligative properties, what should be identified first?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 8Easy ChemistryIf a solution and pure solvent are separated by a semipermeable membrane, where will the solvent move?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 9Easy ChemistryWhy is the osmotic pressure method useful for determining molar mass in very dilute solutions?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 12Medium ChemistryFor what purpose is an antifreeze added in vehicles?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 9Easy ChemistryWhich colligative property mainly explains melting of ice on roads by adding salt?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 9Easy ChemistryIf Kb = 0.5 and m = 2, what is ΔTb?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 10Easy ChemistryAt the same molality, which solution may show greater freezing point depression?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 11Medium ChemistryWhat happens to lowering of vapour pressure when the number of solute particles in a solution increases?Class 12Chapter 01: Solutions4: Vapour PressureLevel 10Easy ChemistryIf i > 1 is observed for a solute, what may it indicate?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 10Easy ChemistryIf i < 1 is observed for a solute, what may it indicate?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 10Easy ChemistryIf a solute has i = 2, how will its colligative effect compare with an ideal non-electrolyte?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 11Medium ChemistryWhy do electrolytes like salts often show greater colligative effects than non-electrolytes?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 10Easy ChemistryWhy does a non-electrolyte solute of lower molar mass show a larger effect for the same mass?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 11Medium ChemistryFor the same mass of solute, how does a higher molar mass affect the number of particles?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 10Easy ChemistryWhat happens to the freezing point of water when a non-volatile solute is added?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 8Easy ChemistryIf Kf and molality are known, what can be calculated?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 10Easy ChemistryIf Kb and molality are known, which quantity can be calculated?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 10Easy ChemistryFor a non-volatile solute, relative lowering of vapour pressure is equal to what?Class 12Chapter 01: Solutions4: Vapour PressureLevel 11Medium ChemistryIf two solutions have different osmotic pressures, in which direction will solvent move through a semipermeable membrane?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 10Easy