- 1(current)
Q. No.Identify the correct statements:
Choose the correct answer from the options given below :
1. A and C only
2. A, B, and C only
3. A, D, and E only
4. A and B only
| A. | The molality of 2.5 g of ethanoic acid (Molar mass: 60 g 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: 40 g mol-1) in 450 mL of solution is 0.278 M at 298 K. |
| C. | Aquatic species are more comfortable in cold water. |
| D. | The solubility of a gas increases with a decrease in pressure. |
| E. | For a binary mixture of A and B, the number of moles of A and B are nA and nB, respectively. The mole fraction of B will be xB = nA / (nA + nB). |
Choose the correct answer from the options given below :
1. A and C only
2. A, B, and C only
3. A, D, and E only
4. A and B only
Subtopic: Concentration Terms & Henry's Law |
68%
Level 2: 60%+
NEET - 2026
Please attempt this question first.
Hints
Please attempt this question first.
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%
Level 2: 60%+
NEET - 2024
Hints
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 |
77%
Level 2: 60%+
NEET - 2024
Hints
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%
Level 3: 35%-60%
NEET - 2023
Hints
Which of the following contains 0.5 moles of a solute in one molal solution?
| 1. | 1000 g of solvent | 2. | 500 mL of solvent |
| 3. | 500 g of solvent | 4. | 100 mL of solvent |
Subtopic: Concentration Terms & Henry's Law |
74%
Level 2: 60%+
NEET - 2022
Hints
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 |
78%
Level 2: 60%+
NEET - 2022
Hints
- 1(current)
Q. No.
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