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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।

ChemistryWhat is the main reason for the elevation of the boiling point of a solution?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Easy ChemistryAssuming complete dissociation, which of the following aqueous solutions of equal molality will have the lowest freezing point?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryWhat happens if a blood cell is placed in a highly concentrated salt solution?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Easy ChemistryA 0.1 m solution has ΔTb = 0.052 K. If Kb = 0.52 K kg mol⁻¹ for the solvent, what is the van’t Hoff factor i?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Easy ChemistryIf the molar mass obtained from freezing-point depression is higher than the true value, what may be happening in the solution?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryWhich option gives the correct order of boiling points for equal-molality solutions, assuming complete dissociation?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryA solution contains 0.01 mol solute in 1 L and its osmotic pressure is measured at 300 K. If the solute completely dissociates into 2 ions, how will its osmotic pressure compare with that of an ideal non-dissociated solute?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryIf the van’t Hoff factor i of a solution is greater than 1, what behaviour does it indicate?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Easy ChemistryA solute is found to have a van’t Hoff factor i = 0.5. Which conclusion is most appropriate?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Easy ChemistryWhat is the basic principle of reverse osmosis used to obtain pure water from seawater?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryIf the boiling point elevation of a solution is greater than the expected value, what could be a possible reason?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryTwo solutions have the same osmotic pressure at the same temperature. If both are ideal dilute solutions, which statement is correct?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Medium ChemistryIf CH3COOH forms dimers in benzene, what happens to its observed molar mass?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Hard ChemistryIn a solution of a non-volatile solute, the observed colligative effect is lower than the value predicted for ideal behaviour. What does this usually indicate?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Hard ChemistryIn which situation is osmotic pressure more useful than freezing-point depression for determining molar mass?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Hard ChemistryA solution contains 0.1 mol of NaCl, which dissociates completely into ions. At the same molality, how will the boiling-point elevation of the NaCl solution compare with that of a urea solution?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Hard ChemistryIn a numerical problem on colligative properties, what should be done first to obtain the correct answer?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Medium ChemistryIf two solutions have the same molality but the solute ionises in one of them, which solution will show the greater colligative effect?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Medium ChemistryIf two non-electrolyte solutions have the same molality and the same solvent, how will their ΔT_f values compare?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Medium ChemistryIf a solute completely dissociates into three ions in solution, what is the ideal van’t Hoff factor, i?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 15Medium