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Chapter 01 Solutions

Class 12 Chemistry के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ChemistryAssuming complete ionisation, which solute will have the highest van’t Hoff factor in aqueous solutions of equal molality?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Medium ChemistryA solution contains 0.5 mol of solute dissolved in 1 kg of solvent. What is its molality?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Easy ChemistryIf a 0.2 molal non-dissociating solute produces a certain depression in freezing point, what will be the ideal depression in freezing point for a 0.2 molal NaCl solution?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Medium ChemistryWhile determining molar mass from osmotic pressure, which precaution is most important?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Medium ChemistryWhy does ice appear to melt faster when salt is sprinkled on it?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Easy ChemistryWhy is the freezing point of seawater lower than that of pure water?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Easy ChemistryTwo solutions have equal osmotic pressure at the same temperature. If their solutes are different, what is the best conclusion?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Medium ChemistryIf the freezing-point depression of a solution is less than the value expected for a non-associated solute, which reason is most probable?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Medium ChemistryIf the boiling-point elevation of a solution is greater than the value expected for a non-electrolyte, what may be the reason?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Medium ChemistryWhich pair contains only colligative properties?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Easy ChemistryWhich property of a solute is not important for determining colligative properties?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Easy ChemistryFor a non-dissociated solute, the elevation in boiling point is given by ΔT_b = K_bm. If the same solute dissociates 50% into two ions, what is the van’t Hoff factor, i?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Medium ChemistryIf 2 moles of particles are effectively present in a solution while 1 mole was expected for the ideal non-dissociated state, what is the van't Hoff factor i?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Easy ChemistryFor reverse osmosis, the applied external pressure must be greater than what?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Easy ChemistryIn reverse osmosis, in which direction does the solvent move?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Easy ChemistryWhich solution is likely to have the highest osmotic pressure if temperature is the same?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Medium ChemistryIn a solution, the actual number of solute particles is twice the expected number. What is its van't Hoff factor?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Easy ChemistryA solution has relative lowering of vapour pressure equal to 0.02. Assuming an ideal dilute solution, what is the mole fraction of solute?Class 12Chapter 01: Solutions4: Vapour PressureLevel 15Medium ChemistryA solute’s apparent molar mass determined from osmotic pressure is greater than its actual molar mass. What does this indicate?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 15Medium ChemistryIf an electrolyte of type AB₂ dissociates completely, what will be its ideal van't Hoff factor?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Easy