- 1(current)
Q. No.Select the correct option based on statements below:
| Assertion (A): | When methyl alcohol is added to water, boiling point of water increases. |
| Reason (R): | When a volatile solute is added to a volatile solvent, elevation in boiling point is observed. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Elevation of Boiling Point | Raoult's Law |
Level 3: 35%-60%
Hints
Given below are two statements :
In light of the above statements choose the correct answer from the options given below:
| Statement I: | The proportionality constant, Kf, depends on the nature of the solvent as well as the solute. |
| Statement II: | When blood cells are placed in water containing less than 0.9 % (mass/volume) salt, blood cells shrink due to osmosis. |
In light of the above statements choose the correct answer from the options given below:
| 1. | Statement I is correct; Statement II is incorrect |
| 2. | Statement I is incorrect; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is correct; Statement II is correct |
Subtopic: Raoult's Law |
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
The vapour pressures of two pure isomeric liquids, X and Y, are 200 torr and 100 torr, respectively, at a given temperature. Assuming a solution of these components to obey Raoult’s law, the mole fraction of component Y in the vapour phase in equilibrium with the solution containing equal amounts of X and Y at the same temperature is:
1. 0.33
2. 0.50
3. 0.66
4. 0.80
1. 0.33
2. 0.50
3. 0.66
4. 0.80
Subtopic: Raoult's Law |
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
Which of the following graph is correct for an ideal binary liquid solution containing non-volatile solute?
| 1. |  |
2. |  |
| 3. |  |
4. | All are correct |
Subtopic: Raoult's Law |
Level 3: 35%-60%
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Hints
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Q. No.
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