| 1 |
18 g of glucose is dissolved in 90 g of water. The relative lowering of vapour pressure is equal to |
- A. 1/5
- B. 5.1
- C. 1/51
- D. 6
|
| 2 |
The molarity of 2% w/v NaOH solution is |
- A. 2
- B. 0.25
- C. 0.05
- D. 0.5
|
| 3 |
Colligative properties are used to determine the |
- A. Freezing points
- B. Boiling point
- C. Atomic mass of an element
- D. Molar mass of solute
|
| 4 |
Which one of the following salts dissolved in water to form a solution with a pH greater than 7 |
- A. NaCl
- B. CuSO4
- C. Na2CO3
- D. NH4Cl
|
| 5 |
18 g glucose is dissolved in 90 g of water. The relative lowering of vapour pressure is equal to. |
- A. 1/5
- B. 5.1
- C. 1/51
- D. 6
|
| 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 |
An azeotropic mixture of two liquids boils at lower temperature than either of them when. |
- A. It is saturated
- B. It shows positive deviation from Raoult's law
- C. It shows negative deviation from Raoult's law
- D. It is metastable
|
| 8 |
Butter is solution of |
- A. Liquid in liquid
- B. Solid and liquid
- C. Liquid and solid
- D. Liquid and gas
|
| 9 |
Which one of the following salts do not hydrolyses |
- A. CuSO4
- B. Na2CO3
- C. NaCl
- D. AlCl3
|
| 10 |
Molarity of pure water is |
|