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Class 12 · Chemistry · Medium
→If a cell is placed in a hypertonic solution, in which direction will the net movement of water occur?
Class 12 · Chemistry · Medium
→Why is the osmotic-pressure method particularly useful for determining the molar mass of large molecules?
Class 12 · Chemistry · Medium
→Which solution will show the greatest elevation in boiling point at the same molality, assuming complete dissociation and comparable solvent conditions?
Class 12 · Chemistry · Medium
→If the observed elevation in boiling point, ΔT_b, is less than the value expected for a non-electrolyte, which process is most likely responsible?
Class 12 · Chemistry · Medium
→If the observed depression in freezing point is greater than the value expected for a non-electrolyte because of ionisation, what is the van’t Hoff factor, i?
Class 12 · Chemistry · Easy
→If the boiling point of a pure solvent is \(100^{\circ}C\) and that of its solution is \(100.26^{\circ}C\), what is the elevation in boiling point, \(\Delta T_b\)?
Class 12 · Chemistry · Easy
→If the freezing point of a pure solvent is 0 °C and that of its solution is −0.72 °C, what is the depression in freezing point, ΔT_f?
Class 12 · Chemistry · Easy
→If Kf = 2.0 K kg mol⁻¹ and ΔTf = 0.8 K for a non-electrolyte solution, what is its molality?
Class 12 · Chemistry · Easy
→If \(K_b=0.60\ \mathrm{K\,kg\,mol^{-1}}\) and the elevation in boiling point is \(\Delta T_b=1.20\ \mathrm{K}\), what is the molality of a non-electrolyte solution?
Class 12 · Chemistry · Easy
→If 0.5 mol of solute dissolves in 250 g of solvent, what is the molality of the solution?
Class 12 · Chemistry · Easy
→Which of the following is a colligative property of a solution that depends mainly on the number of solute particles?
Class 12 · Chemistry · Easy
→For a dilute solution containing a non-volatile solute, if the mole fraction of the solute is \(0.12\), what is the relative lowering of vapour pressure?
Class 12 · Chemistry · Easy
→If a solution contains 0.2 mol of solute and 0.8 mol of solvent, what is the mole fraction of the solvent?
Class 12 · Chemistry · Easy
→Which of the following is not a colligative property of a solution?
Class 12 · Chemistry · Medium
→If the value of \(K_f\) is the same in all cases, in which option will the depression in freezing point be greatest?
Class 12 · Chemistry · Easy
→If i = 2.5, how will the observed colligative property compare with that of a normal non-electrolyte at the same concentration?
Class 12 · Chemistry · Easy
→If the van’t Hoff factor is i = 1, which statement about solute behaviour is correct?
Class 12 · Chemistry · Medium
→In which situation can the apparent molar mass of a solute be greater than the actual value?
Class 12 · Chemistry · Easy
→If a solution has higher osmotic pressure than another solution at the same temperature, how will the first solution be?
Class 12 · Chemistry · Easy
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