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Question 1
The boiling point of 0.2 mol kg-1 solution of X in water is greater than equimolal solution of Y in water. Which one of the following statements is true in this case?
Question 2
A solution of sucrose(molar mass = 342g mol-1 has been prepared by dissolving 68.5 g of sucrose in 1000 g of water. The freezing point of the solution obtained will be (kf for water= 1.86 K kg mol-1)
Question 3
0.5 molal aqueous solution of a weak acid (HX) is 20% ionised. If Kf for water is 1.86 K kg mol-1, the lowering in freezing point of the solution is :
Question 4
The phase diagram for the pure solvent (solid lines, and the solution (non-stable solute dashed lines) are recorded below. The quantity indicated by L in the figure is –
Question 5
Value of van’t Hoff factor for Al2(SO4)3 solution with 80% dissociation?
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Class 12thChemistryJan 21Class 12th