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Class 12 · Chemistry
→Which constant is used in the method of boiling-point elevation?
Class 12 · Chemistry
→In molar mass determination using freezing-point depression, in which unit must the mass of the solvent be expressed?
Class 12 · Chemistry
→Which simple relation is used to calculate molar mass?
Class 12 · Chemistry
→Why are colligative properties mainly used for determining molar mass?
Class 12 · Chemistry
→Which pair will produce nearly the same depression in freezing point at the same molality if both salts are completely dissociated?
Class 12 · Chemistry
→What happens to the relative lowering of vapour pressure when the mole fraction of the solute is increased in a solution?
Class 12 · Chemistry
→For a solution, i = 2.5 and molality is 0.2 m. If Kf = 1.86 K kg mol⁻¹, what is ΔTf?
Class 12 · Chemistry
→A solution contains 5 g of solute in 100 g of solvent. If the same amount of solute is dissolved in 200 g of solvent, what happens to the depression in freezing point?
Class 12 · Chemistry
→A solution has i = 1. Which situation is most suitable for it?
Class 12 · Chemistry
→For which solution is the van’t Hoff factor i most likely to be less than 1?
Class 12 · Chemistry
→Which relation is correct for a dilute solution containing a non-volatile solute?
Class 12 · Chemistry
→The observed molar mass of a substance in benzene is found to be twice its normal molar mass. Which conclusion is correct?
Class 12 · Chemistry
→If MgCl₂ undergoes 50% dissociation, what is the value of the van’t Hoff factor (i)?
Class 12 · Chemistry
→A nonelectrolyte solution has an osmotic pressure of 2.46 atm at a concentration of 0.1 M. What will its osmotic pressure be at 0.2 M and the same temperature?
Class 12 · Chemistry
→What is the minimum external pressure required to stop the entry of solvent through a semipermeable membrane into a solution called?
Class 12 · Chemistry
→A solution contains 0.1 mol of solute in 2 kg of solvent. If the van’t Hoff factor is i = 3, what is the effective molality?
Class 12 · Chemistry
→Which colligative property is most suitable for determining the molar mass of a high-molar-mass solute such as a protein in a very dilute solution?
Class 12 · Chemistry
→Which statement correctly describes the characteristic of colligative properties?
Class 12 · Chemistry
→Which colligative property is most suitable for determining the molar mass of high-molar-mass proteins?
Class 12 · Chemistry
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