Solutions PYQs - Last 10 Years

Assertion A: For an ideal solution formed by mixing liquids $\mathbf{P}$ and $\mathbf{Q}, \Delta_{\text {mix }} H=0$ and $\Delta_{\text {mix }} V=0$
Reason R: No interactions occur between P and Q
In the light of the above statements, choos...

Consider the following statements about the solutions formed by mixing two liquids.
A. An ideal solution thus formed obeys Raoult's law throughout the composition range.
B. Mixture of chloroform and acetone shows negative deviation from Rao...

Mixture of chloroform and acetone forms a solution with negative deviation from Raoult's law due to :

Identify the correct statements :
(A) The molality of 2.5 g of ethanoic acid (Molar mass : $60 \mathrm{~g} \mathrm{~mol}^{-1}$ ) in 75 g of benzene solution is 0.556 m .
(B) The molarity of a solution containing 5 g of NaOH (molar mass : $4...

Match List-I with List-II

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5 moles of liquid X and 10 moles of liquid Y make a solution having a vapour pressure of 70 torr. The vapour pressures of pure $X$ and $Y$ are 63 torr and 78 torr respectively. Which of the following is true regarding the described solution...

Which of the following aqueous solution will exhibit highest boiling point?

Mass of glucose \((\mathrm{C}_6 \mathrm{H}_{12} \mathrm{O}_6)\) required to be dissolved to prepare one litre of its solution which is isotonic with \(15 \mathrm{~g} \mathrm{~L}^{-1}\) solution of urea \((\mathrm{NH}_3 \mathrm{CONH}_2)\) is...

The plot of osmotic pressure (П) vs concentration \((\mathrm{mol} \mathrm{~L}^{-1})\) for a solution gives a straight line with slope \(25.73 \mathrm{~L} \mathrm{~bar} \mathrm{~mol}^{-1}\). The temperature at which the osmotic pressure meas...

The Henry's law constant \((\mathrm{K}_{\mathrm{H}})\) values of three gases \((\mathrm{A}, \mathrm{B}, \mathrm{C})\) in water are \(145, 2 \times 10^{-5}\) and \(35 \mathrm{~kbar}\) respectively. The solubility of these gases in water foll...

Which amongst the following aqueous solution of electrolytes will have minimum elevation in boiling point? Choose the correct option :-

KH value for some gases at the same temperature 'T' are given :

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The correct option for the value of vapour pressure of a solution at 45\(^\circ\)C with benzene to octane in molar ratio 3 : 2 is :[At 45\(^\circ\)C vapour pressure of benzene is 280 mm Hg and that of octane is 420 mm Hg. Assume Ideal gas]

The following solutions were prepared by dissolving 10 g of glucose (C6H12O6) in 250 ml of water (P1), 10 g of urea (CH4N2O) in 250 ml of water (P2) and 10 g of sucrose (C12H22O11) in 250 ml of water (P3). The right option for the decreasin...

The freezing point depression constant (Kr) of benzene is 5. 12 K kg mol-1. The freezing point depression for the solution of molality 0.078 m containing a non-electrolyte solute in benzene is rounded off upto two decimal places :

The mixture which shows positive deviation from Raoult's law is :

The mixture that forms maximum boiling
azeotrope is :

For an ideal solution, the correct option is :

If molality of the dilute solution is doubled, the value of molal depression constant (Kf) will be