| 1 |
The molal boiling point constant is the ration of the elevation in boiling point to |
- A. Molarity
- B. Molality
- C. Mole fraction of solvent
- D. Mole fraction of solute
|
| 2 |
Depression in the F.P is directly proportional to |
- A. Molarity of solution
- B. Molarity of solvent
- C. Molality of solvent
- D. Molality of solution
|
| 3 |
The unit of mole fraction is |
- A. Moles dm<sup>-3</sup>
- B. Moles kg<sup>-1</sup>
- C. Gram dm<sup>-3</sup>
- D. None
|
| 4 |
<div>Relative lowering of vapour pressure is equal to.</div> |
- A. Mole fraction of solute
- B. Mole fraction of solvent
- C. Mole fraction of solute and solvent
- D. Molality of solution
|
| 5 |
A negative deviation from Raoult's law in solution means, the solution has |
- A. High boiling point and high vapour pressure
- B. High boiling point and low vapour pressure
- C. Low boiling point and low vapour pressure
- D. Low boiling point and high vapour pressure
|
| 6 |
When an ionic compound is dissolved in water, it dissociate into positive and negative ions, which are surrounded by H2O molecule, This process is known as. |
- A. Hydrolysis
- B. Hydration
- C. Saturation
- D. solvolysis
|
| 7 |
Which of the following solutions will have the highest boiling point |
- A. 0.1 M NaCI
- B. 0.1 M CaCI<sub>2</sub>
- C. 0.1 M FeCI<sub>3</sub>
- D. 0.1 M glucose
|
| 8 |
Solubility of which substance decreases by increasing temperature. |
- A. NaNO3
- B. KNO2
- C. NaCl
- D. Ce2(SO4)3
|
| 9 |
Azeotropic mixture can be separated into pure components by |
- A. Distillation
- B. Fractional distillation
- C. Vacuum distillation
- D. None
|
| 10 |
Colligative properties are used to determine the |
- A. Freezing points
- B. Boiling point
- C. Atomic mass of an element
- D. Molar mass of solute
|