Q. No.The unit that relates concentration of solution with its vapour pressure is:
1. Mole fraction.
2. Parts per million.
3. Mass percentage.
4. Molality.
On dissolving sugar in water at room temperature solution feels cool to touch. Dissolution of sugar will be most rapid under the following case is:
1. Sugar crystals in cold water
2. Sugar crystals in hot water
3. Powdered sugar in cold water
4. Powdered sugar in hot water
At equilibrium, the rate of dissolution of a solid solute in a volatile liquid solvent is:
| 1. | Less than the rate of crystallisation |
| 2. | Greater than the rate of crystallisation |
| 3. | Equal to the rate of crystallisation |
| 4. | Zero |
A beaker contains a solution of substance 'A'. Precipitation of substance ‘A’ takes place when a small amount of 'A' is added to the solution. The solution is:
| 1. | Saturated. | 2. | Supersaturated. |
| 3. | Unsaturated. | 4. | Concentrated. |
The maximum amount of a solid solute that can be dissolved in a specified amount of a given liquid solvent does not depend upon:
| 1. | Temperature | 2. | Nature of solute |
| 3. | Pressure | 4. | Nature of solvent |
Low concentration of oxygen in the blood and tissues of people living at high altitudes is due to:
| 1. | Low temperature |
| 2. | Low atmospheric pressure |
| 3. | High atmospheric pressure |
| 4. | Both low temperature and high atmospheric pressure |
Considering the formation, breaking and strength of hydrogen bond, predict which of the following mixtures will show a positive deviation from Raoult’s law?
1. Methanol and acetone
2. Chloroform and acetone
3. Nitric acid and water
4. Phenol and aniline
Colligative properties are dependent on which of the following factors?
| 1. | The nature of the solute particles dissolved in the solution. |
| 2. | The number of solute particles in the solution. |
| 3. | The physical properties of the solute particles dissolved in the solution. |
| 4. | The nature of solvent particles. |
Match the items given in Column I and Column II.
| Column I | Column II | ||
| A. | Saturated solution | 1. | Solution having same osmotic pressure at a given temperature as that of a given solution. |
| B. | Hypertonic solution | 2. | A solution whose osmotic pressure is less than that of another. |
| C. | Isotonic solution | 3. | A solution that contains the maximum amount of solute that can be dissolved in a given amount of solvent at a given temperature. |
| D. | Hypotonic solution | 4. | A solution whose osmotic pressure is more than that of another. |
Codes:
| A | B | C | D | |
| 1. | 2 | 3 | 4 | 1 |
| 2. | 2 | 4 | 3 | 1 |
| 3. | 3 | 4 | 1 | 2 |
| 4. | 1 | 2 | 3 | 4 |
Match the items given in Column I with the type of solutions given in Column II.
| Column I | Column II |
| A. Soda water | 1. A solution of gas in solid |
| B. Sugar solution | 2. A solution of gas in liquid |
| C. German silver | 3. A solution of solid in liquid |
| D. Hydrogen gas in palladium | 4. A solution of solid in solid |
Codes:
| A | B | C | D | |
| 1. | 2 | 1 | 4 | 3 |
| 2. | 1 | 2 | 3 | 4 |
| 3. | 2 | 3 | 4 | 1 |
| 4. | 4 | 1 | 3 | 2 |
© 2024 GoodEd Technologies Pvt. Ltd.