| 1 |
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
|
| 2 |
10 g of NaOH have been dissolved per kg of solvent The molality of solution. |
- A. 0.25 m
- B. 0.5 m
- C. 1.0 m
- D. 2.0 m
|
| 3 |
Heat of solution of an ionic compound is equal to. |
- A. Hydration energy
- B. Lattice energy
- C. Slum of both 'a' and 'b'
- D. Difference of both a and b
|
| 4 |
The molal boiling point constant is the the ratio of the elevation in boiling point to. |
- A. Molarity
- B. Molality
- C. Mole fraction of solvent
- D. Mole fraction of solute
|
| 5 |
Molarity of pure water is |
|
| 6 |
<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
|
| 7 |
Depression of freezing point method is used for determination of molar masses of |
- A. Electrolytes
- B. Non-volatile solids
- C. Volatile solids
- D. Volatile liquids
|
| 8 |
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
|
| 9 |
A solution of glucose is 10% The volume in which 1 g mole of it dissolved will be. |
- A. 1 dm3
- B. 1.8 dm3
- C. 900 cm3
- D. 200 cm3
|
| 10 |
In azeotropic mixture showing positive deviation from Raoult's law the volume of the mixture is |
- A. Slightly more than the total volume of the components
- B. Slightly less than the total volume of the components
- C. Equal to the total volume of the components
- D. None of these
|