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Q. No.Which of the following aqueous solution will exhibit highest boiling point?
1. \(0.01 \mathrm{M} ~\mathrm{Na}_2 \mathrm{SO}_4 \)
2. \(0.015 \text M~\mathrm{C}_6 \mathrm{H}_{12} \mathrm{O}_6 \)
3. \(0.01 \text {M Urea} \)
4. \(0.01 \mathrm{M} ~\mathrm{KNO}_3\)
1. \(0.01 \mathrm{M} ~\mathrm{Na}_2 \mathrm{SO}_4 \)
2. \(0.015 \text M~\mathrm{C}_6 \mathrm{H}_{12} \mathrm{O}_6 \)
3. \(0.01 \text {M Urea} \)
4. \(0.01 \mathrm{M} ~\mathrm{KNO}_3\)
Subtopic: Elevation of Boiling Point | Van’t Hoff Factor |
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From NCERT
NEET - 2025
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Match List-I with List-II
Choose the correct answer from the options given below:
1. A-III, B-I, C-IV, D-II
2. A-III, B-II, C-I, D-IV
3. A-II, B-IV, C-I, D-III
4. A-II, B-I, C-IV, D-III
| List-I (Example) |
List-II (Type of solution) |
||
| A. | Humidity | I. | Solid in solid |
| B. | Alloys | II. | Liquid in gas |
| C. | Amalgans | III. | Solid in gas |
| D. | Smoke | IV. | Liquid in solid |
1. A-III, B-I, C-IV, D-II
2. A-III, B-II, C-I, D-IV
3. A-II, B-IV, C-I, D-III
4. A-II, B-I, C-IV, D-III
Subtopic: Introduction & Colligative properties |
76%
From NCERT
NEET - 2025
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\(5\) moles of liquid \(\text X\) and \(10\) moles of liquid \(\text Y\) make a solution having a vapour pressure of \(70\) torr. The vapour pressures of pure \(\text X\) and \(\text Y\) are \(63\) torr and \(78\) torr respectively. Which of the following is true regarding the described solution?
| 1. | The solution is ideal. |
| 2. | The solution has volume greater than the sum of individual volumes. |
| 3. | The solution shows positive deviation. |
| 4. | The solution shows negative deviation. |
Subtopic: Raoult's Law |
52%
From NCERT
NEET - 2025
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The Henry's law constant KH values of three gases (A, B, C) in water are 145, 2 × 10–5, and 35 kbar, respectively. Determine the order of solubility of these gases in water from highest to lowest:
| 1. | B > C > A | 2. | A > C > B |
| 3. | A > B > C | 4. | B > A > C |
Subtopic: Concentration Terms & Henry's Law |
60%
From NCERT
NEET - 2024
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The plot of osmotic pressure \((\pi)\) vs concentration \((mol L^{-1})\) for a solution gives a straight line with slope 25.73 L bar mol-1. The temperature at which osmotic pressure measurement is done is: \((\text {Use} \left.\mathrm{R}=0.083 \mathrm{~L} \mathrm{bar} \mathrm{mol}^{-1} \mathrm{~K}^{-1}\right)\)
| 1. | 310°C | 2. | 25.73°C |
| 3. | 12.05 °C | 4. | 37°C |
Subtopic: Osmosis & Osmotic Pressure |
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From NCERT
NEET - 2024
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Which of the following pair of aqueous solutions will have the same value of osmotic pressure?
(Assume complete dissociation in aqueous solution)
1. \(0.1~ \mathrm{{M}~ {BaCl}_2} \text { and } 0.2 ~\mathrm{{M} ~{K}_2 {SO}_4}\)
2. \(0.1~ \mathrm{{M}~ {Na}_3 {PO}_4} \text { and } 0.1 ~\mathrm{{M}~ {K}_2 {SO}_4}\)
3. \(0.2~ \mathrm{{M}~ {NaCl}} \text { and } 0.1 ~\mathrm{{M} ~{K}_2 {SO}_4}\)
4. \(0.2 ~\mathrm{{M} ~{NaCl}} \text { and } 0.1~ \mathrm{{M} ~{K}_3\left[{Fe}({CN})_6\right]}\)
(Assume complete dissociation in aqueous solution)
1. \(0.1~ \mathrm{{M}~ {BaCl}_2} \text { and } 0.2 ~\mathrm{{M} ~{K}_2 {SO}_4}\)
2. \(0.1~ \mathrm{{M}~ {Na}_3 {PO}_4} \text { and } 0.1 ~\mathrm{{M}~ {K}_2 {SO}_4}\)
3. \(0.2~ \mathrm{{M}~ {NaCl}} \text { and } 0.1 ~\mathrm{{M} ~{K}_2 {SO}_4}\)
4. \(0.2 ~\mathrm{{M} ~{NaCl}} \text { and } 0.1~ \mathrm{{M} ~{K}_3\left[{Fe}({CN})_6\right]}\)
Subtopic: Osmosis & Osmotic Pressure |
69%
From NCERT
NEET - 2024
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Match the equilibrium processes in List-I with their respective physical properties in List-II and choose the correct option:
Choose the correct answer from the options given below:
1. A-II, B-I, C-III, D-IV
2. A-I, B-II, C-III, D-IV
3. A-III, B-II, C-I, D-IV
4. A-II, B-I, C-III, D-V
| List-I (Equilibrium Process) |
List-II (Physical Properties) |
||
| A. | \(Liquid \rightleftharpoons Vapour\) | I. | Melting point |
| B. | \(Solid \rightleftharpoons Liquid\) | II. | Boiling point |
| C. | \(Solid \rightleftharpoons Vapour\) | III. | Sublimation point |
| D. | \(\small {Solute (solid) \rightleftharpoons Solute (solution)}\) | IV. | Saturated solution |
| V. | Unsaturated solution |
1. A-II, B-I, C-III, D-IV
2. A-I, B-II, C-III, D-IV
3. A-III, B-II, C-I, D-IV
4. A-II, B-I, C-III, D-V
Subtopic: Introduction & Colligative properties |
73%
From NCERT
NEET - 2024
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When 5 g of non-volatile non-electrolyte solute is dissolved in 100 g of a certain solvent, the freezing point of the solvent decreases by 0.25 K. The molar mass of the solute is:
\([\text{K}_f \) of the given solvent \( =1.2 \mathrm{K ~kg}~ \mathrm{mol}^{-1}] \)
\([\text{K}_f \) of the given solvent \( =1.2 \mathrm{K ~kg}~ \mathrm{mol}^{-1}] \)
| 1. | \(242.8 \mathrm{~g} \mathrm{~mol}^{-1}\) | 2. | \(238.2 \mathrm{~g} \mathrm{~mol}^{-1}\) |
| 3. | \(241.8 \mathrm{~g} \mathrm{~mol}^{-1}\) | 4. | \(240.0 \mathrm{~g} \mathrm{~mol}^{-1}\) |
Subtopic: Depression of Freezing Point |
83%
From NCERT
NEET - 2024
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What mass of glucose (C₆H₁₂O₆) must be dissolved in 1 liter of solution to make it isotonic with a 15 g/L solution of urea (NH₂CONH₂)?
(Given : Molar mass in g \(\mathrm{mol}^{-1}\) C:12, H:1, O: 16, N:14)1. 55 g
2. 15 g
3. 30 g
4. 45 g
Subtopic: Concentration Terms & Henry's Law | Osmosis & Osmotic Pressure |
76%
From NCERT
NEET - 2024
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Given below are two statements: one is labeled as Assertion (A) and the other is labeled as Reason (R):
In light of the above statements, choose the correct answer from the options given below:
| Assertion (A): | Helium is used to dilute oxygen in the diving apparatus. |
| Reason (R): | Helium has a high solubility in O2. |
| 1. | (A) is False but (R) is True. |
| 2. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 3. | Both (A) and (R) are True and (R) is not the correct explanation of (A). |
| 4. | (A) is True but (R) is False. |
Subtopic: Concentration Terms & Henry's Law |
51%
From NCERT
NEET - 2023
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