Select Question Set:
Q. No.Given below are two statements: one is labeled as Assertion (A) and the other is labeled as Reason (R):
Assertion (A):
Helium is used to dilute oxygen in the diving apparatus.
Reason (R):
Helium has a high solubility in O2.
In light of the above statements, choose the correct answer from the options given below:
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%
Level 3: 35%-60%
NEET - 2023
Hints
Which of the following aqueous solutions of electrolytes will exhibit the least elevation in boiling point?
| 1. | 0.05 M NaCl | 2. | 0.1 M KCl |
| 3. | 0.1 M MgSO4 | 4. | 0.1 M NaCl |
Subtopic: Van’t Hoff Factor |
77%
Level 2: 60%+
NEET - 2023
Hints
Which aqueous solution exhibits the largest freezing point depression?
1. 1.0 m KBr
2. 0.75 m C6H12O6
3. 0.5 m MgCl2
4. 0.25 m Ga2(SO4)3
1. 1.0 m KBr
2. 0.75 m C6H12O6
3. 0.5 m MgCl2
4. 0.25 m Ga2(SO4)3
Subtopic: Depression of Freezing Point |
59%
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
Consider the two statements:
| Statement I: | The value of Kf can be calculated by using \( K_{f} \ = \ \frac{R\times M_{1}\times T_{f}^{2}}{1000\times \Delta _{fus}H}\) |
| Statement II: | Unit of Ebullioscopic constant (Kb) is K kg L-1. |
| 1. | Statement I is True, Statement II is False. |
| 2. | Statement I is False, Statement II is True. |
| 3. | Both Statement I and Statement II are True. |
| 4. | Both Statement I and Statement II are False. |
Subtopic: Elevation of Boiling Point |
67%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
The Henry Law constants of four gases P, Q, R, and S in water are 38.5, 10.42, 1.26, and 2.11 bar at 298 K and 1 atm. Identify the gas that will dissolve maximally in water.
| 1. | P | 2. | Q |
| 3. | R | 4. | S |
Subtopic: Concentration Terms & Henry's Law |
85%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
Consider the following statements
The correct statements are:
| A. | Solubility of gases in liquids decreases with a rise in temperature. |
| B. | To avoid bends, the tanks used by scuba divers are filled with air diluted with helium. |
| C. | Temperature does not have a significant effect on the solubility of solids in liquids. |
The correct statements are:
| 1. | A and B | 2. | B and C |
| 3. | A and C | 4. | A, B and C |
Subtopic: Introduction & Colligative properties |
71%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
Negative deviation from Raoult's law is shown by-
1. Bromoethane and chloroethane
2. Ethanol and acetone
3. Chloroform and acetone
4. Benzene and toluene
1. Bromoethane and chloroethane
2. Ethanol and acetone
3. Chloroform and acetone
4. Benzene and toluene
Subtopic: Azeotrope | Raoult's Law |
82%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
KH value for some gases at the same temperature 'T' are given:
KH is Henry's Law constant in water. The order of their solubility in water is :
| gas | KH/k bar |
| Ar | 40.3 |
| CO2 | 1.67 |
| HCHO | 1.83 × 10–5 |
| CH4 | 0.413 |
| 1. | Ar < CO2 < CH4 < HCHO |
| 2. | Ar < CH4 < CO2 < HCHO |
| 3. | HCHO < CO2 < CH4 < Ar |
| 4. | HCHO < CH4 < CO2 < Ar |
Subtopic: Concentration Terms & Henry's Law |
77%
Level 2: 60%+
NEET - 2022
Hints
Match List-I with List-II:
| List-I (Types of Solutions) |
List-II (Common Examples) |
||
| A. | Gas in Gas | I. | Solution of hydrogen in palladium |
| B. | Solid in Gas | II. | Mixture of oxygen and nitrogen gas |
| C. | Gas in Liquid | III. | Camphor in nitrogen gas |
| D. | Gas in Solid | IV. | Oxygen dissolved in water |
| Options: | A | B | C | D |
| 1. | II | III | IV | I |
| 2. | II | I | IV | III |
| 3. | II | IV | III | I |
| 4. | II | IV | I | III |
Subtopic: Introduction & Colligative properties |
86%
Level 1: 80%+
Hints
What is the concentration of a glucose solution in intravenous injection in gram/lit which is isotonic with blood solution which has osmotic pressure 7.93 bar at 300 K ?
1. 62 g/L
2. 0.58 g/L
3. 0.62 g/L
4. 58 g/L
1. 62 g/L
2. 0.58 g/L
3. 0.62 g/L
4. 58 g/L
Subtopic: Osmosis & Osmotic Pressure |
58%
Level 3: 35%-60%
JEE
Please attempt this question first.
Hints
Please attempt this question first.
Select Question Set:
© 2025 GoodEd Technologies Pvt. Ltd.