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 depend on:
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 |
A solution that has the highest boiling point among the following is:
1. 1.0 M NaOH
2. 1.0 M Na2SO4
3. 1.0 M NH4NO3
4. 1.0 M KNO3
The unit of Ebullioscopic constant is:
1. K kg mol–1 or K (molality)–1
2. mol kg K–1 or K–1 (molality)
3. kg mol–1 K–1 or K–1 (molality)–1
4. K mol kg–1 or K (molality)